MD5: 84c35e628e053945431b83f5fe992124
SHA1: 8670517073607565b9008e394956d7da8757908a
SHA256: 2756dfc7e7066fbc9af125f8cfa61bcf5442b1783ebdf09e416a7faacf6e1c15
SSDeep: 12288:oubtP/am7FwnDxZjSWxYSJgEJ83NuxIUr s9FT1xQinF ShBItHTezHvOBSvh:og3mDvjBxYg63ifFhnIShBIkzH20
Size: 680960 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2004-08-04 09:01:37
Analyzed on: WindowsXP SP3 32-bit

Summary:

Trojan-Dropper. Trojan program, intended for stealth installation of other malware into user's system.

Payload

No specific payload has been found.

Process activity

The Trojan-Dropper creates the following process(es):

dwwin.exe:772
%original file name%.exe:1380

The Trojan-Dropper injects its code into the following process(es):

M.exe:1744

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process dwwin.exe:772 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\123EE6.dmp (68836 bytes)

The process %original file name%.exe:1380 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\M.ex_ (7168 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\M.exe (13968 bytes)

The process M.exe:1744 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Application Data\CSIDL_X (2105 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\3c51_appcompat.txt (1763 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\CSIDL_ (2105 bytes)

Registry activity

The process dwwin.exe:772 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B4 E2 74 96 B7 34 25 28 32 0A CA BA DA 03 F2 CA"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 28 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan-Dropper deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:1380 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6C 3D A5 9F FB 13 3B F3 1B B5 07 37 44 07 4F 67"

To automatically run itself each time Windows is booted, the Trojan-Dropper adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

The process M.exe:1744 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EB 37 70 4C 4F DD E3 F0 0E 67 5B CF 9B 40 D2 86"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"

The Trojan-Dropper deletes the following registry key(s):

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]

The Trojan-Dropper deletes the following value(s) in system registry:

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]
"DWFileTreeRoot"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: HD Player
Product Version: 6.00.2900.2180
Legal Copyright: (c) Microsoft Corporation. All rights reserved.
Legal Trademarks:
Original Filename: WEXTRACT.EXE
Internal Name: Wextract
File Version: 6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)
File Description: Win32 Cabinet Self-Extractor
Comments:
Language: English (United States)

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan-Dropper connects to the servers at the folowing location(s):

.text

`.data

.rsrc

ADVAPI32.dll

KERNEL32.dll

NTDLL.DLL

GDI32.dll

USER32.dll

COMCTL32.dll

VERSION.dll

advapi32.dll

advpack.dll

wininit.ini

Software\Microsoft\Windows\CurrentVersion\App Paths

setupapi.dll

setupx.dll

IXPd.TMP

TMP4351$.TMP

FINISHMSG

USRQCMD

ADMQCMD

msdownld.tmp

wextract.pdb

PSSSSSSh

RegCloseKey

RegOpenKeyExA

RegCreateKeyExA

RegQueryInfoKeyA

GetWindowsDirectoryA

ExitWindowsEx

MsgWaitForMultipleObjects

rundll32.exe %s,InstallHinfSection %s 128 %s

SHELL32.DLL

Software\Microsoft\Windows\CurrentVersion\RunOnce

PendingFileRenameOperations

System\CurrentControlSet\Control\Session Manager\FileRenameOperations

wextract_cleanup%d

%s /D:%s

rundll32.exe %sadvpack.dll,DelNodeRunDLL32 "%s"

Command.com /c %s

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\

33333330

3333333

33333333

M.exe

M.ex_

eJ.Ir"

y\%c.od|

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Please read the following license agreement. Press the PAGE DOWN key to see the rest of the agreement.

CFailed to get disk space information from: %s.

System Message: %s.&A required resource cannot be located. Are you sure you want to cancel?

8Unable to retrieve operating system version information.!Memory allocation request failed.

Filetable full.Ên not change to destination folder.

Setup could not find a drive with %s KB free disk space to install the program. Please free up some space first and press RETRY or press CANCEL to exit setup.KThat folder is invalid. Please make sure the folder exists and is writable.IYou must specify a folder with fully qualified pathname or choose Cancel.!Could not update folder edit box.5Could not load functions required for browser dialog.7Could not load Shell32.dll required for browser dialog.

(Error creating process <%s>. Reason: %s1The cluster size in this system is not supported.,A required resource appears to be corrupted.QWindows 95 or Windows NT 4.0 Beta 2 or greater is required for this installation.

Error loading %shGetProcAddress() failed on function '%s'. Possible reason: incorrect version of advpack.dll being used./Windows 95 or Windows NT is required to install

Could not create folder '%s'

To install this program, you need %s KB disk space on drive %s. It is recommended that you free up the required disk space before you continue.

Error retrieving Windows folder

$NT Shutdown: OpenProcessToken error.)NT Shutdown: AdjustTokenPrivileges error.!NT Shutdown: ExitWindowsEx error.}Extracting file failed. It is most likely caused by low memory (low disk space for swapping file) or corrupted Cabinet file.aThe setup program could not retrieve the volume information for drive (%s) .

System message: %s.xSetup could not find a drive with %s KB free disk space to install the program. Please free up some space and try again.eThe installation program appears to be damaged or corrupted. Contact the vendor of this application.

/C:<Cmd> -- Override Install Command defined by author.

eAnother copy of the '%s' package is already running on your system. Do you want to run another copy?

Could not find the file: %s.

:The folder '%s' does not exist. Do you want to create it?hAnother copy of the '%s' package is already running on your system. You can only run one copy at a time.OThe '%s' package is not compatible with the version of Windows you are running.SThe '%s' package is not compatible with the version of the file: %s on your system.

6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)

WEXTRACT.EXE

Windows

Operating System

6.00.2900.2180

M.exe_1744:

.text

`.rdata

@.data

.idata

.rsrc

@.reloc

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ODBC32.DLL

COMCTL32.DLL

CCmdTarget

CHotKeyCtrl

CNotSupportedException

GDI32.DLL

CTL3D32.DLL

__MSVCRT_HEAP_SELECT

user32.dll

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.PAVCObject@@

.PAVCException@@

.PAVCDBException@@

.?AVCCmdTarget@@

.?AVCCmdUI@@

.?AVCTestCmdUI@@

.PAVCUserException@@

.?AVCHotKeyCtrl@@

.PAVCOleDispatchException@@

.PAVCSimpleException@@

.PAVCMemoryException@@

.PAVCNotSupportedException@@

.?AVCNotSupportedException@@

.PAVCResourceException@@

.PAVCOleException@@

.PAVCFileException@@

.PAVCArchiveException@@

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windows

KERNEL32.DLL

GetCPInfo

KERNEL32.dll

CreateDialogIndirectParamW

UnhookWindowsHookEx

SetWindowsHookExW

GetKeyState

USER32.dll

GetViewportOrgEx

SetViewportOrgEx

OffsetViewportOrgEx

SetViewportExtEx

ScaleViewportExtEx

GetViewportExtEx

GDI32.dll

comdlg32.dll

WINSPOOL.DRV

RegCloseKey

RegEnumKeyW

RegOpenKeyW

RegDeleteKeyW

RegCreateKeyExW

RegOpenKeyExW

RegCreateKeyW

ADVAPI32.dll

SHELL32.dll

COMCTL32.dll

oledlg.dll

ole32.dll

OLEPRO32.DLL

OLEAUT32.dll

ODBC32.dll

SetWindowsHookExA

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File%d

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%s\ShellNew

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%s\shell\printto\%s

%s\shell\print\%s

%s\shell\open\%s

{X-X-X-XX-XXXXXX}

MSH_SCROLL_LINES_MSG

[user_password]

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\M.exe

{43478D73-78E0-11CF-8E78-00A0D100038E}

{00028C00-0000-0000-0000-000000000046}

43478d75-78e0-11cf-8e78-00a0d100038e

select view1.student_no as

where view1.student_no=student.student_no order by

select course.course_name as

where course.course_no=score.course_no

GROUP BY course.course_name

(*.*)

Output.prn$

(*.prn)|*.prn|

(*.*)|*.*||

ODBC32.DLL

(API_CONFORMANCE >= SQL_OAC_LEVEL1

(API_CONFORMANCE >= SQL_OAC_MINIMUM

M.exe_1744_rwx_00C40000_00EB6000:

.text

`.rdata

@.data

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ODBC32.DLL

COMCTL32.DLL

CCmdTarget

CHotKeyCtrl

CNotSupportedException

GDI32.DLL

CTL3D32.DLL

__MSVCRT_HEAP_SELECT

user32.dll

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.PAVCObject@@

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.PAVCUserException@@

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.PAVCOleDispatchException@@

.PAVCSimpleException@@

.PAVCMemoryException@@

.PAVCNotSupportedException@@

.?AVCNotSupportedException@@

.PAVCResourceException@@

.PAVCOleException@@

.PAVCFileException@@

.PAVCArchiveException@@

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windows

KERNEL32.DLL

GetCPInfo

KERNEL32.dll

CreateDialogIndirectParamW

UnhookWindowsHookEx

SetWindowsHookExW

GetKeyState

USER32.dll

GetViewportOrgEx

SetViewportOrgEx

OffsetViewportOrgEx

SetViewportExtEx

ScaleViewportExtEx

GetViewportExtEx

GDI32.dll

comdlg32.dll

WINSPOOL.DRV

RegCloseKey

RegEnumKeyW

RegOpenKeyW

RegDeleteKeyW

RegCreateKeyExW

RegOpenKeyExW

RegCreateKeyW

ADVAPI32.dll

SHELL32.dll

COMCTL32.dll

oledlg.dll

ole32.dll

OLEPRO32.DLL

OLEAUT32.dll

ODBC32.dll

SetWindowsHookExA

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MSH_SCROLL_LINES_MSG

[user_password]

{43478D73-78E0-11CF-8E78-00A0D100038E}

{00028C00-0000-0000-0000-000000000046}

43478d75-78e0-11cf-8e78-00a0d100038e

select view1.student_no as

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select course.course_name as

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(*.*)

Output.prn$

(*.prn)|*.prn|

(*.*)|*.*||

ODBC32.DLL

(API_CONFORMANCE >= SQL_OAC_LEVEL1

(API_CONFORMANCE >= SQL_OAC_MINIMUM

M.exe_1744_rwx_01B00000_00005000:

PSSSSSSh

M.exe_1744_rwx_01B10000_00179000:

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`.rdata

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.idata

.rsrc

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ODBC32.DLL

COMCTL32.DLL

CCmdTarget

CHotKeyCtrl

CNotSupportedException

GDI32.DLL

CTL3D32.DLL

__MSVCRT_HEAP_SELECT

user32.dll

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.PAVCException@@

.PAVCDBException@@

.?AVCCmdTarget@@

.?AVCCmdUI@@

.?AVCTestCmdUI@@

.PAVCUserException@@

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.PAVCSimpleException@@

.PAVCMemoryException@@

.PAVCNotSupportedException@@

.?AVCNotSupportedException@@

.PAVCResourceException@@

.PAVCOleException@@

.PAVCFileException@@

.PAVCArchiveException@@

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windows

KERNEL32.DLL

GetCPInfo

KERNEL32.dll

CreateDialogIndirectParamW

UnhookWindowsHookEx

SetWindowsHookExW

GetKeyState

USER32.dll

GetViewportOrgEx

SetViewportOrgEx

OffsetViewportOrgEx

SetViewportExtEx

ScaleViewportExtEx

GetViewportExtEx

GDI32.dll

comdlg32.dll

WINSPOOL.DRV

RegCloseKey

RegEnumKeyW

RegOpenKeyW

RegDeleteKeyW

RegCreateKeyExW

RegOpenKeyExW

RegCreateKeyW

ADVAPI32.dll

SHELL32.dll

COMCTL32.dll

oledlg.dll

ole32.dll

OLEPRO32.DLL

OLEAUT32.dll

ODBC32.dll

SetWindowsHookExA

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%s\ShellNew

%s\DefaultIcon

%s\shell\printto\%s

%s\shell\print\%s

%s\shell\open\%s

{X-X-X-XX-XXXXXX}

MSH_SCROLL_LINES_MSG

[user_password]

{43478D73-78E0-11CF-8E78-00A0D100038E}

{00028C00-0000-0000-0000-000000000046}

43478d75-78e0-11cf-8e78-00a0d100038e

select view1.student_no as

where view1.student_no=student.student_no order by

select course.course_name as

where course.course_no=score.course_no

GROUP BY course.course_name

(*.*)

Output.prn$

(*.prn)|*.prn|

(*.*)|*.*||

ODBC32.DLL

(API_CONFORMANCE >= SQL_OAC_LEVEL1

(API_CONFORMANCE >= SQL_OAC_MINIMUM

M.exe_1744_rwx_01C90000_00057000:

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KERNEL32.DLL

advapi32.dll

AVICAP32.DLL

comctl32.dll

gdi32.dll

gdiplus.dll

msacm32.dll

netapi32.dll

ntdll.dll

ole32.dll

oleaut32.dll

shell32.dll

SHFolder.dll

URLMON.DLL

user32.dll

version.dll

wininet.dll

winmm.dll

WS2_32.DLL

wsock32.dll

ShellExecuteA

URLDownloadToFileA

FtpPutFileA

;L.ll8

KEYKYY

!"#$%&'()* ,-./

GUfx.DL1

-B`.rd

SHELL32.dll

USER32.dll

.htm0

CUSER32.dll

@y/web

.ms-*nl

URLD

iphlpapi.dll

MFC42.DLL

MSVCRT.dll

OLEAUT32.dll

WININET.dll

WS2_32.dll

1, 0, 0, 1

MSRSAAP.EXE

4, 0, 0, 0

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   dwwin.exe:772
   %original file name%.exe:1380
   

2. Delete the original Trojan-Dropper file.
   
3. Delete or disinfect the following files created/modified by the Trojan-Dropper:
   

   %Documents and Settings%\%current user%\Local Settings\Temp\123EE6.dmp (68836 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\M.ex_ (7168 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\M.exe (13968 bytes)
   %Documents and Settings%\%current user%\Local Settings\Application Data\CSIDL_X (2105 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\3c51_appcompat.txt (1763 bytes)
   

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
   "wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

5. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.