Gen.Variant.Graftor.150077_9808c38a34 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

epnug.exe:4076
epnug.exe:3988
%original file name%.exe:3692
%original file name%.exe:4032

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

Explorer.EXE:1948

Mutexes

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

File activity

The process %original file name%.exe:4032 makes changes in the file system.

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

%Documents and Settings%\%current user%\Application Data\Vesyy\epnug.exe (238 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc9aec436.bat (177 bytes)

Registry activity

The process epnug.exe:4076 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA 81 61 C8 7F C5 28 70 B0 6B DA 8E E6 2C D9 2B"

The process epnug.exe:3988 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "9E 6F 84 4C 14 87 04 EA 95 15 E6 55 AE 2C 6A EE"

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

The process %original file name%.exe:3692 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "77 74 0B D5 9A 70 5A 5F 7C FC 47 5D 46 F0 3E A6"

The process %original file name%.exe:4032 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BD 18 23 4E C5 19 23 0C 2D 4D C6 86 D1 69 CA 6A"

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

Dropped PE files

MD5	File path
f753a9a8f7e25003d1a89084e52a3d2d	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Vesyy\epnug.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

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

PlaySoundW

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

HttpEndRequestW
HttpEndRequestA
HttpSendRequestExW
HttpSendRequestExA
InternetSetFilePointer
InternetReadFileExA
HttpSendRequestA
HttpOpenRequestW
HttpSendRequestW
HttpOpenRequestA
InternetQueryDataAvailable
InternetCloseHandle
HttpQueryInfoA
InternetReadFile

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

PFXImportCertStore

The Trojan 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 installs the following user-mode hooks in ADVAPI32.dll:

CreateProcessAsUserA
CreateProcessAsUserW

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

WSASend
gethostbyname
send
closesocket
getaddrinfo

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

ExitProcess
GetFileAttributesExW

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

NtCreateThread

Propagation

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*

Scan a system with an anti-rootkit tool.
Terminate malicious process(es) (How to End a Process With the Task Manager):
epnug.exe:4076
epnug.exe:3988
%original file name%.exe:3692
%original file name%.exe:4032
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Vesyy\epnug.exe (238 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc9aec436.bat (177 bytes)
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version:
File Description:
Comments:
Language: Serbian (Latin, Serbia and Montenegro (Former))

Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: File Description: Comments: Language: Serbian (Latin, Serbia and Montenegro (Former))

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	65629	66048	4.60924	28630549f1fe4de6b160873e91cef380
.rdata	73728	12740	12800	3.81207	00906163848f6b99e98120f40aeacc7b
.data	90112	175788	16896	4.83494	f35a48de2440be3c46944fa8ad0cf53a
.rsrc	266240	140160	140288	5.52445	2945e55105fd0bf5763cb428b3374a71

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

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

Explorer.EXE_1948_rwx_01100000_0003B000:

.text

`.data

.reloc

%s%s%s

HTTP/1.1

HTTP/1.0

hXXp://

hXXps://

HTTP/1.

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

hXXp://VVV.google.com/webhp

PR_OpenTCPSocket

cit_ffcookie.module

cit_video.module

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

hXXp://xxxxxxxx.com/xxxx/xxxx.php

%s, u %s %u u:u:u GMT

; charset=%s

HTTP/1.1 %u %s

Date: %s

Content-Length: %u

Expires: %s

Content-Type: %s%s

ID: %s

value_%s

value_%s_%s

%s = "%s";

update.exe

config.bin

facebook.com

Cookie: %s

Referer: %s

Accept: %s

Accept-Language: %s

Accept-Encoding: %s

='?8,6,&

&

*;>",*' 04

%9%'62 1

0-'40'7!7

1$34/**8

!'8>#-"

38.2-0&5

0:.vmk

$/9%:'1"

^#?07&'22

_getFirefoxCookie

CreatePipe

GetProcessHeap

KERNEL32.dll

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

GetKeyboardLayoutList

ExitWindowsEx

GetKeyboardState

MsgWaitForMultipleObjects

SetKeyboardState

MapVirtualKeyW

USER32.dll

RegCreateKeyExW

RegOpenKeyExW

RegCloseKey

RegEnumKeyExW

RegCreateKeyW

RegQueryInfoKeyW

RegEnumKeyW

ADVAPI32.dll

UrlUnescapeA

SHDeleteKeyW

PathIsURLW

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

HttpOpenRequestA

HttpOpenRequestW

HttpEndRequestA

HttpSendRequestA

HttpEndRequestW

InternetCrackUrlA

HttpAddRequestHeadersW

HttpAddRequestHeadersA

GetUrlCacheEntryInfoW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

VERSION.dll

WINMM.dll

PSSSSSSh

SSSh4

42>204:4

nspr4.dll

chrome.dll

kernel32.dll

\StringFileInfo\xx\%s

ntdll.dll

"%s" %s

/c "%s"

%sx.%s

%sx

SELECT * FROM %s

sXXXX

Company: %s

Product: %s

Version: %s

Software\Microsoft\Windows\CurrentVersion\Uninstall

%u: %s | %s | %s

Chrome

Firefox

SysShadow

Global\XXX

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

{5138E364-ADE1-1415-491B-65F1BD03CBFB}

%Documents and Settings%\%current user%\Application Data\Ikxyte\qufu.xua

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

qufu.xua

%Documents and Settings%\%current user%\Application Data\Huyteq\wyer.lio

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

wyer.lio

Global\{C7435141-1FC4-826E-491B-65F1BD03CBFB}

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps