Trojan.SalityStub.F_b56d0f3cba – Adaware

Dynamic Analysis

Payload

Behaviour	Description
WormAutorun	A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

Process activity

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

%original file name%.exe:312
Explorer.EXE:1684

Mutexes

The following mutexes were created/opened:

Ap1mutx7%original file name%.exeM_312_wmiprvse.exeM_2000_vmupgradehelper.exeM_316_vmtoolsd.exeM_128_jqs.exeM_1972_spoolsv.exeM_1448_svchost.exeM_1116_svchost.exeM_960_vmacthlp.exeM_936_lsass.exeM_776_services.exeM_764_winlogon.exeM_720_csrss.exeM_696_smss.exeM_624_uxJLpe1m

File activity

The process %original file name%.exe:312 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

C:\eboi.pif (99 bytes)
%WinDir%\system.ini (72 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (744 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winydme.exe (561 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ngyxmt.exe (561 bytes)
C:\autorun.inf (301 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (856 bytes)
C:\totalcmd\TOTALCMD.EXE (858 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\ngyxmt.exe (0 bytes)
%WinDir%\257887 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winydme.exe (0 bytes)

Registry activity

The process %original file name%.exe:312 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Stvncyfrlda]
"m2_8" = "997420773"
"m2_9" = "2732719960"

[HKCU\Software\Stvncyfrlda\168128873]
"-1648771660" = "30"

[HKCU\Software\Stvncyfrlda]
"m2_2" = "3470576471"
"m2_3" = "910908362"
"m2_0" = "5517"
"m2_1" = "1735293664"
"m2_6" = "1821804803"
"m2_7" = "3557105270"

"m2_5" = "86522028"
"m4_12" = "3643619612"

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m1_7" = "2820037032"

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

[HKCU\Software\Stvncyfrlda]
"m4_11" = "1908328879"

[HKCU\Software\Stvncyfrlda\168128873]
"-737866757" = "7439D18CF99ADB97C70A1EA4EA1DDEB3A46AF9AF9995ACD22104A39789171EB3633818AD029260106FF7F47FE0DE6244028206B85FFFAD226E9742031F5914A424C8AAD11CCC09A683D5C288F7B6E1F47648BB6509895D8CEFEAA4FC96A6440B61FA7545CEB6A4B60F5D6273763CD021B75224603D4E837AD74FFC1C93A050D600"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"Hidden" = "2"

[HKCU\Software\Stvncyfrlda]
"m2_4" = "2646190137"

[HKLM\SOFTWARE\Microsoft\Security Center]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_0" = "0"
"m4_1" = "1735290733"
"m4_2" = "3470581466"
"m4_3" = "910904903"
"m4_4" = "2646195636"
"m4_5" = "86519073"
"m4_6" = "1821809806"
"m4_7" = "3557100539"
"m4_8" = "997423976"
"m4_9" = "2732714709"

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

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

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

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"910904903" = "0"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "65 6D 28 C0 BF 78 AF 63 90 C7 8E A8 B9 DB 78 A4"

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

[HKCU\Software\Stvncyfrlda]
"m3_3" = "927474798"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"-824385830" = "0"
"1821809806" = "0400687474703A2F2F38392E3131392E36372E3135342F746573746F352F00687474703A2F2F6B756B7574727573746E65743737372E696E666F2F686F6D652E67696600687474703A2F2F6B756B7574727573746E65743838382E696E666F2F686F6D652E67696600687474703A2F2F6B756B7574727573746E65743938372E696E666F2F686F6D652E67696600"

[HKCU\Software\Stvncyfrlda]
"m2_10" = "173032746"
"m1_10" = "3127516927"
"m2_12" = "3643615808"
"m1_12" = "1954038609"

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

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

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m3_2" = "3487544563"
"m3_1" = "1718420804"
"m3_0" = "17001001"
"m3_7" = "3573965266"
"m3_6" = "1838544551"
"m3_5" = "69945096"
"m3_4" = "2629490589"
"m3_9" = "2749530364"
"m3_8" = "980422977"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
"EnableLUA" = "0"

[HKCU\Software\Stvncyfrlda\168128873]
"1735290733" = "1"

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

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallOverride" = "1"

[HKCU\Software\Stvncyfrlda]
"m1_5" = "990974441"
"m1_4" = "2043211597"
"m4_10" = "173038146"
"m1_6" = "942015960"
"m1_1" = "692605188"
"m1_0" = "1431655765"
"m1_3" = "553799287"
"m1_2" = "2322242303"
"m1_9" = "151879564"
"m1_8" = "3256253133"

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m1_11" = "31487998"
"m2_11" = "1908331499"

[HKCU\Software\Stvncyfrlda\168128873]
"86519073" = "143"

[HKCU\Software\Stvncyfrlda]
"m3_12" = "3626914613"
"m3_11" = "1891476358"
"m3_10" = "190001259"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:]
"%original file name%.exe" = "c:\%original file name%.exe:*:Enabled:ipsec"

Firewall notifications are disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DisableNotifications" = "1"

A firewall is disabled:

"EnableFirewall" = "0"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusDisableNotify" = "1"

Dropped PE files

MD5	File path
2347ad1ba11107a704936f09a69d6d99	c:\eboi.pif

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

Removals

Remove it with Ad-Aware

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

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
C:\eboi.pif (99 bytes)
%WinDir%\system.ini (72 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (744 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winydme.exe (561 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ngyxmt.exe (561 bytes)
C:\autorun.inf (301 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (856 bytes)
C:\totalcmd\TOTALCMD.EXE (858 bytes)
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
Reboot the computer.

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

Static Analysis

VersionInfo

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	69632	66048	5.53414	993700aaf4548fd2b30e5eae2fba7840

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 14
83f3a045b4f1a35964eee1f074afa8e1
1b1acaad387ea5a74173104c3edc7dd6
4c0acecb86dc1b012a222c93b827c5bd
e95b311071ef50dccbee07323978a0ea
5826471d68fd6f363ff0a28be45a6598
496ce6b97c3c603aa33243cb35b1592f
7d0da22218ff1418cf17a132ddee5061
e173b8801b354715aec2e396eaf60f38
8c9252aa1a1c8f4aac1e7f688168c86e
24aa9ab92881e513d280f8f328cdd539
ce57aaf8fd60a0d01295d8783ef08b7a
94425997fc04e3eec566f6d6df88ffee
60ec7a0ac2132a3d32b793d381a5503e
065c95935a2a3949075962687908cfa0

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

%original file name%.exe_312:

.text

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

56d0f3cba20b0058cd3facf334beff8.exe

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

h.rdla&

mH.MN8

T4.At%

S.twa

.klkjw:9fqwiBumW

.sysa

Zc.pBTa

~%s:*:yd:

.!.VF*

.d&?%x=

GUrlA'

"\'Web%w}

HTTP)s'PS

2GUARDCMD

o.ENHCDM

wWEBWUPD

MM.PF

%xn'[

>>?456789:;

!"#$%&'()* ,-./4

qn%CXf

UP*dB.PPd@.

%FoAN-x

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_312_rwx_00401000_00011000:

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

.text

56d0f3cba20b0058cd3facf334beff8.exe

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

h.rdla&

mH.MN8

T4.At%

S.twa

.klkjw:9fqwiBumW

.sysa

Zc.pBTa

~%s:*:yd:

.!.VF*

.d&?%x=

GUrlA'

"\'Web%w}

HTTP)s'PS

2GUARDCMD

o.ENHCDM

wWEBWUPD

MM.PF

%xn'[

>>?456789:;

!"#$%&'()* ,-./4

qn%CXf

UP*dB.PPd@.

%FoAN-x

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_312_rwx_00520000_010BA000:

hXXp://89.11

.info/home.gifIh

bW.text

JKERNEL32.dll

%x.exe

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

.text

KERNEL32.dll

.reloc

USER32.dll

h.rdata

H.data

ntoskrnl.exe

Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)

Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache

Software\Microsoft\Windows\CurrentVersion\Internet Settings

Software\Microsoft\Windows\CurrentVersion

hXXp://VVV.klkjwre9fqwieluoi.info/

hXXp://kukutrustnet777888.info/

Software\Microsoft\Windows\CurrentVersion\policies\system

Software\Microsoft\Windows\ShellNoRoam\MUICache

%s:*:Enabled:ipsec

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

GdiPlus.dll

hXXp://

ipfltdrv.sys

VVV.microsoft.com

?%x=%d

&%x=%d

SYSTEM.INI

USER32.DLL

.%c%s

\\.\amsint32

NTDLL.DLL

autorun.inf

ADVAPI32.DLL

win%s.exe

%s.exe

WININET.DLL

InternetOpenUrlA

avast! Web Scanner

Avira AntiVir Premium WebGuard

cmdGuard

cmdAgent

Eset HTTP Server

ProtoPort Firewall service

SpIDer FS Monitor for Windows NT

Symantec Password Validation

WebrootDesktopFirewallDataService

WebrootFirewall

%d%d.tmp

SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

%s\%s

%s\Software\Microsoft\Windows\CurrentVersion\Ext\Stats

Software\Microsoft\Windows\CurrentVersion\Ext\Stats

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects

KERNEL32.DLL

Explorer.exe

A2CMD.

ASHWEBSV.

AVGCC.AVGCHSVX.

DRWEB

DWEBLLIO

DWEBIO

FSGUIEXE.

MCVSSHLD.

NPFMSG.

SYMSPORT.

WEBSCANX.

%c%d_%d

purity_control_%x

.adata

M_%d_

?456789:;

!"#$%&'()* ,-./0123

mong%WinDir%\

%WinDir%\hywjfubtsnl.log

%System%\drivers\jnltgn.sys

24557188309

SHELL32.DLL

ShellExecuteA

GetProcessHeap

GetWindowsDirectoryA

RegEnumKeyExA

RegDeleteKeyA

RegOpenKeyExA

RegCreateKeyA

RegCloseKey

SHFileOperationA

&3&3&3&389

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

WS2_32.dll

%original file name%.exe_312_rwx_01FC0000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

%original file name%.exe_312_rwx_020D0000_00001000:

|%original file name%.exeM_312_

Explorer.EXE_1684_rwx_00ED0000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

Explorer.EXE_1684_rwx_00EE0000_00001000:

|explorer.exeM_1684_

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps