MD5: ff7d1d262a62a789933f9921f5dbe72b
SHA1: e64471803558fef0466d17905cda5ab1b77b1812
SHA256: 1ee2907ede7f7641d0571d0e449c19d4e248b73af8953f4d2bd5cdf77c18acaa
SSDeep: 3072:rGu9BlfzWIbXWm w0Jh5iK6 ld2lPEAZtGm0XMwRsG0oEd:r/0uob6 ld2lPRZJ63R0b
Size: 138752 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Premium Installer
Created at: 2008-04-13 21:32:45
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):

%original file name%.exe:636
07SERV~1.EXE:1068

The Trojan-Dropper injects its code into the following process(es):
No processes have been created.

File activity

The process %original file name%.exe:636 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\07SERV~1.EXE (4232 bytes)

The Trojan-Dropper deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\07SERV~1.EXE (0 bytes)

The process 07SERV~1.EXE:1068 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%WinDir%\Fonts\lsass.exe (15902 bytes)

The Trojan-Dropper deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\~DF74CB.tmp (0 bytes)

Registry activity

The process %original file name%.exe:636 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" = "B5 7E 12 F6 6B 8F A9 41 4C 48 40 5B 21 35 C7 FE"

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 Trojan-Dropper deletes the following value(s) in system registry:
The Trojan-Dropper disables automatic startup of the application by deleting the following autorun value:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0"

The process 07SERV~1.EXE:1068 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[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\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\path2]
"CacheLimit" = "65452"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKCU\Software\VB and VBA Program Settings\IECBGVCIS47920310000RUTKWC\IECBGVCIS47920310000RUTKWC]
"#" = "•Œ˜¥vƒ’¬Î²¼¨¾ÎÆ|¾¿Å½Á »Ê´“Ë~¼Á³"

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

[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\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\VB and VBA Program Settings\IECBGVCIS47920310000RUTKWC\IECBGVCIS47920310000RUTKWC]
"1" = "‘š¢švU‡‚‰x€t€‹sS’Œƒ{o˜ "
"2" = "£ŸŒ”žvc’¬›¸±¹¼¼Á”Ëp¸·²d¢¼Ç”Á¾¾¼ª¥³Ä¯ldz¸µn—´ËljƷʥ¢©¼Ç¯i° ‡y~r£¤£|ˆ‡ªŽ šÍˆe°•"

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%WinDir%\Fonts]
"lsass.exe" = ""

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

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

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

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

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

"Start Menu" = "%Documents and Settings%\%current user%\Start Menu"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 14 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Fonts" = "%WinDir%\Fonts"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "77 9E EA 77 3D B7 F4 F7 88 C9 2D 6E F6 CC 68 95"

[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"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\VB and VBA Program Settings\Options\Windows XP]
"1" = "£™œ›™¡g{@}{@}"

[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]
"Recent" = "%Documents and Settings%\%current user%\Recent"

The Trojan-Dropper modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

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

Proxy settings are disabled:

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

The Trojan-Dropper modifies IE settings for security zones to map all urls to the Intranet Zone:

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

The Trojan-Dropper modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

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

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

Dropped PE files

There are no dropped PE files.

HOSTS file anomalies

The Trojan-Dropper modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 698 bytes in size. The following strings are added to the hosts file listed below:

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: HD Player
Product Version: 6.00.2900.5512
Legal Copyright: (c) Microsoft Corporation. All rights reserved.
Legal Trademarks:
Original Filename: WEXTRACT.EXE
Internal Name: Wextract
File Version: 6.00.2900.5512 (xpsp.080413-2105)
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

07SERV~1.EXE

Cn.Wk

).yPUA

@ek%X

F,%cI@d

Jq-vX}

.cx!rN

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: -- 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.

6.00.2900.5512 (xpsp.080413-2105)

WEXTRACT.EXE

Windows

Operating System

6.00.2900.5512

lsass.exe_1096:

.text

`.data

.idata

@.rsrc

@.reloc

MSVBVM50.DLL

date.eMMP07

MMP07.CommandLine1

tmrKeyBuffer

tmrPassword

lblURL

MSocketSupport

WindowsBAS

MoKeylog

VBA5.DLL

advapi32.dll

RegCreateKeyA

RegDeleteKeyA

RegEnumKeyA

RegCloseKey

RegOpenKeyA

MapVirtualKeyA

ExitWindowsEx

shell32.dll

SHFileOperationA

wininet.dll

GetWindowsDirectoryA

avicap32.dll

momo.dll

urlmon

URLDownloadToFileA

user32.dll

GetAsyncKeyState

imagehlp.dll

GetKeyState

ShellExecuteA

keybd_event

%Program Files%\DevStudio\VB5\VB5.OLB

TCPServer

TCPTransfer

TCPCapture

TCPCapture_OnSendComplete

TCPServer_OnConnect

TCPServer_OnConnectionRequest

TCPCapture_OnConnectionRequest

TCPTransfer_OnConnectionRequest

TCPServer_OnSendComplete

TCPServer_OnClose

TCPServer_OnError

TCPTransfer_OnError

TCPServer_OnDataArrival

TCPCapture_OnError

tmrKeyBuffer_Timer

tmrPassword_Timer

TCPTransfer_OnDataArrival

TCPTransfer_OnSendComplete

kernel32.dll

GdiplusShutdown

ws2_32.dll

getservbyport

vbzip11.dll

PasswordRequest

RemotePort

LocalPort

cmdSendChat

cmdSendChat_Click

txtSend_KeyPress

SetWindowsHookExA

UnhookWindowsHookEx

GetKeyboardState

winmm.dll

HttpOpenRequestA

HttpSendRequestA

HttpQueryInfoA

CreatePipe

TCPServer

sMsg

sPassword

lMaxPasswordLength

lngRemotePort

lngLocalPort

KeyAscii

>(?,?0?4?8?

1 1$1(1,141

6064686<6@6

6 6$6(6,6064686<6

*\AC:\DOCUME~1\Guido\Desktop\CAPPRO~1\VB5SER~2\MINIMO~1.VBP

{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}

SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\

Software\Microsoft\Windows\CurrentVersion\Policies\

.Class1

.image\

keys.log

regedit.exe

127.0.0.1

ActiveXExe\

moupdate.exe

http://

was executed

scrcap.jpg

The operation was canceled.

MSocketSupport.RegisterSocket

MSocketSupport.ResolveHost

.ResolveMessage

.WinsockMessage

|0.70|||

http://web.icq.com/friendship/email_thank_you?failed_url=/friendship/send_by_email&folder_id=

&Extra_Params_Counte=0&nick_name=

&user_uin=1999&friend_nickname=

&friend_nickname=&friend_conta

?ip=%IP&port=%PT&nick=%NM&country=%NY&visible=%VS&protected=%PP&about=

Connected to Webcam

\cam.jpg

\cam.bmp

\scrcap.jpg

cam.jpg

4IN_KEYS

@hotmail.com

update.txt

upload.tmp

7MO_CMDLINE

shell32.dll,

windows

win.ini

system.ini

Explorer.exe

C:/Windows/wininit.ini

HTTP/1.0

HttpOpenRequest failed

http protocol

CSocket.SendData

CSocket.PeekData

CSocket.Listen

CSocket.GetData

CSocket.Connect

CSocket.CSocket.Connect

CSocket.CloseSocket

CSocket.Bind

CSocket.Accept

CSocket.RemoteHost

CSocket.vbSocket

CSocket.PostSocketEvent

CSocket.PostGetHostEvent

CSocket.RecvToBuffer

CSocket.DestroySocket

rundll32.exe shell32.dll,Control_RunDLL

CreatePipe failed.

@*\AC:\DOCUME~1\Guido\Desktop\CAPPRO~1\VB5SER~2\MINIMO~1.VBP

internet explorer.exe

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):
   

   %original file name%.exe:636
   07SERV~1.EXE:1068
   

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\IXP000.TMP\07SERV~1.EXE (4232 bytes)
   %WinDir%\Fonts\lsass.exe (15902 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. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
   127.0.0.1 localhost
   

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