MD5: 938f3ac2ed681d533c481f66f4db92b6
SHA1: 7651723bb8b6e1af82bb6a974fb55e854fa97a2b
SHA256: 41e0039307905cd21dde4e56bf929a6d3a3aea0c871cbbcd682f559dd095f6da
SSDeep: 12288:pPosemfw8lOugPW3eoSE2z3AcTv3ywavJ:ReV8lOtieoSrIv
Size: 429056 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-06-02 03:12:12
Analyzed on: WindowsXP SP3 32-bit

Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

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

soan.exe:1296
tmp.exe:1184
%original file name%.exe:1612
wscript.exe:1620

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

.exe:1616
Explorer.EXE:692

Mutexes

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

File activity

The process tmp.exe:1184 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Okuzty\soan.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc8d08595.bat (213 bytes)

The process %original file name%.exe:1612 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (49 bytes)
%System%\drivers\etc\hosts (216 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (47 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ .exe (35 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rundll32-.txt (2321 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (78 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (141 bytes)

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

%Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rundll32-.txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (0 bytes)

Registry activity

The process soan.exe:1296 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3F C3 4F E2 E7 EB E8 CD D4 69 36 7B 65 3E 8C 97"

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

The process tmp.exe:1184 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "33 48 F0 01 62 E4 C7 D8 8C E2 04 5E EF 60 2B 37"

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

[HKCU\Software\Microsoft\Irynib]
"Asebefdi" = "8B 4F FF 51 B7 A2 65 06 E3 4F 3C 66 BA 39 61 C9"

The process %original file name%.exe:1612 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5F D7 41 50 FC 2D 2D CB BC 26 76 BE B7 EB EB 42"

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

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

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

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"tmp.exe" = "tmp"
"mata.bat" = "mata"

[HKCU\Software\Microsoft\Irynib]
"Asebefdi" = "8B 4F FF 51 B7 A2 65 06 E3 4F 3C 66 BA 39 61 C9"

The Trojan-PSW adds the reference to itself to be executed when a user logs on:

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "%Documents and Settings%\%current user%\Local Settings\Temp\file.exe"

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

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

The Trojan-PSW 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:

"UNCAsIntranet" = "1"

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

"IntranetName" = "1"

The process .exe:1616 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AF CC 45 87 36 E7 34 D4 39 DA BB 53 08 12 43 E7"

[HKCU\Software\Microsoft\Irynib]
"Asebefdi" = "8B 4F FF 51 B7 A2 65 06 E3 4F 3C 66 BA 39 61 C9"

The process wscript.exe:1620 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "69 80 DA 00 A5 6C 3D 78 2B CC F2 4F 56 91 12 21"

[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"

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"mata2.bat" = "mata2"

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

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

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

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

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

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

The Trojan-PSW 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-PSW 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:

"UNCAsIntranet" = "1"

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

"ProxyBypass" = "1"

Dropped PE files

HOSTS file anomalies

The Trojan-PSW modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 216 bytes in size. The following strings are added to the hosts file listed below:

Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan-PSW installs the following user-mode hooks in USER32.dll:

SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSASend
send
closesocket

The Trojan-PSW installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan-PSW installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

Propagation

VersionInfo

Company Name: somitomo
Product Name: somitomo
Product Version: 1.0.0.0
Legal Copyright: 883554
Legal Trademarks: somitomo
Original Filename: force.exe
Internal Name: force.exe
File Version: 1.0
File Description: order
Comments: Þscription%
Language: Language Neutral

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-PSW connects to the servers at the folowing location(s):

.text

`.data

.rsrc

KERNEL32.DLL

UI.DLL

$RX

cvtres.pdb

_amsg_exit

MSVCR80.dll

_crt_debugger_hook

ADVAPI32.dll

GetConsoleOutputCP

GetCPInfo

KERNEL32.dll

.debug$S

[email protected]'

.rsrc$01

@.rsrc$01

.rsrc$02

@.rsrc$02

8.00.50727.1433

CVTRES : fatal error CVTu:

CVTRES : warning CVTu:

/WINDOWSCE

windowsce:emulation

windowsce:convert

windowsce

6duplicate resource. type:%s, name:%s, language:0xX

cannot open '%s' for reading out of memory; %u bytes required

'%s' is corrupt

cannot open %s for writing!target machine "%s" requires "%s"3resource type or name string exceeds limit of 65535

&machine type not specified; assumed %s

Hadding resource. type:%s, name:%s, language:0xX, flags:0x%X, size:%u

converting Ûpp %s to Ûpp %s

CVTRES : fatal error CVTd:%c

CVTRES : warning CVTd:%c>Microsoft (R) Windows Resource To Object Converter Version %s

' /WINDOWSCE[:{CONVERT|EMULATION}]

8.00.50727.1433 (REDBITS.050727-1400)

CVTRES.EXE

.exe_1616_rwx_00150000_00027000:

.text

`.data

.reloc

http://www.google.com/webhp

PR_OpenTCPSocket

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

: ;2*8.>

3.#70!2)

x#m`a`cmddt-

6 !26!1'1

7"52),,>

;<)?$*%,

71.(5;4=

(203,2$0

/?./,5 <

:>(<<44=3%

8%/<8/?)?/

%/>!

HTTP/1.1

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

urlmon.dll

cabinet.dll

http://

https://

HTTP/1.

SSSh,4

GetProcessHeap

KERNEL32.dll

SetKeyboardState

ExitWindowsEx

MsgWaitForMultipleObjects

MapVirtualKeyW

GetKeyboardState

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

ADVAPI32.dll

PathIsURLW

UrlUnescapeA

SHDeleteKeyW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

PFXImportCertStore

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpSendRequestExA

HttpQueryInfoA

HttpSendRequestExW

HttpSendRequestW

HttpSendRequestA

InternetCrackUrlA

HttpOpenRequestA

HttpAddRequestHeadersA

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

6 6&6/656{6

cGlobal\XXX

nspr4.dll

nss3.dll

SysShadow

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

Global\{5C055C40-F3A2-58C2-C6F8-0622F00887AB}

%Documents and Settings%\%current user%\Application Data

{CA7EEE65-4187-CEB9-C6F8-0622F00887AB}

Explorer.EXE_692_rwx_00F30000_00027000:

.text

`.data

.reloc

http://www.google.com/webhp

PR_OpenTCPSocket

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

: ;2*8.>

3.#70!2)

x#m`a`cmddt-

6 !26!1'1

7"52),,>

;<)?$*%,

71.(5;4=

(203,2$0

/?./,5 <

:>(<<44=3%

8%/<8/?)?/

%/>!

HTTP/1.1

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

urlmon.dll

cabinet.dll

http://

https://

HTTP/1.

SSSh,4

GetProcessHeap

KERNEL32.dll

SetKeyboardState

ExitWindowsEx

MsgWaitForMultipleObjects

MapVirtualKeyW

GetKeyboardState

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

ADVAPI32.dll

PathIsURLW

UrlUnescapeA

SHDeleteKeyW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

PFXImportCertStore

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpSendRequestExA

HttpQueryInfoA

HttpSendRequestExW

HttpSendRequestW

HttpSendRequestA

InternetCrackUrlA

HttpOpenRequestA

HttpAddRequestHeadersA

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

6 6&6/656{6

cGlobal\XXX

nspr4.dll

nss3.dll

SysShadow

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

%Documents and Settings%\%current user%\Application Data\Pyinv\apipa.cat

%Documents and Settings%\%current user%\Application Data\Pyinv

apipa.cat

Global\{5C055C40-F3A2-58C2-C6F8-0622F00887AB}

%Documents and Settings%\%current user%\Application Data

{CA7EEE65-4187-CEB9-C6F8-0622F00887AB}

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. Scan a system with an anti-rootkit tool.
   
2. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   soan.exe:1296
   tmp.exe:1184
   %original file name%.exe:1612
   wscript.exe:1620
   

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

   %Documents and Settings%\%current user%\Application Data\Okuzty\soan.exe (141 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\tmpc8d08595.bat (213 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\mata2.bat (49 bytes)
   %System%\drivers\etc\hosts (216 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\mata.bat (47 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\ .exe (35 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\rundll32-.txt (2321 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\invs.vbs (78 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (141 bytes)

5. Remove the references to the Trojan-PSW by modifying the following registry value(s) (How to Work with System Registry):
   

   [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
   "Shell" = "%Documents and Settings%\%current user%\Local Settings\Temp\file.exe"

6. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
   127.0.0.1 localhost
   
7. Reboot the computer.
   

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