Trojan.Generic.KDZ.9641_e8065df8a9 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:860
%original file name%.exe:228
ciorc.exe:188
ciorc.exe:1336

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

Explorer.EXE:1572

Mutexes

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

File activity

The process %original file name%.exe:228 makes changes in the file system.

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

%Documents and Settings%\%current user%\Application Data\Laescu\ciorc.exe (264 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp018b617f.bat (177 bytes)

Registry activity

The process %original file name%.exe:860 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "16 D6 82 34 F1 7A 19 25 55 1D 65 18 2B 42 BF 75"

The process %original file name%.exe:228 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "59 CC 73 79 EE D5 A1 8E 36 C4 DD 54 5F B9 63 02"

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

The process ciorc.exe:188 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E5 7C A7 33 FE 10 E8 01 43 AF DA 42 33 0E F2 8E"

The process ciorc.exe:1336 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "25 B7 E1 A5 C0 D1 F6 C5 BC E1 1D 14 51 05 0B D4"

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

Dropped PE files

MD5	File path
63f2e074340eb6b277fa8a5026c56e52	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Laescu\ciorc.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
HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetSetFilePointer
InternetQueryDataAvailable
HttpOpenRequestW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
HttpOpenRequestA

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):
%original file name%.exe:860
%original file name%.exe:228
ciorc.exe:188
ciorc.exe:1336
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Laescu\ciorc.exe (264 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp018b617f.bat (177 bytes)
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
.code	4096	8078	8192	3.78602	9489520ce884d7a316ea3eb1fd8e1169
.text	12288	20364	20480	4.61985	4bf3d740d6a8310f6d65594190716319
.rdata	32768	328	512	2.36046	ded9aa841c1878b46a43c0e35756796e
.data	36864	13000	3584	3.37906	f6758a3c22565710cdf7e87637dbca6c

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
2eef79fd0a5acee3d19d863986a3235e

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_1572_rwx_01EA0000_0003C000:

.text

`.data

.reloc

%s%s%s

hXXp://VVV.google.com/webhp

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

HTTP/1.1

HTTP/1.0

hXXp://

; 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";

facebook.com

hXXps://

Cookie: %s

Referer: %s

Accept: %s

Accept-Language: %s

Accept-Encoding: %s

= *9=*:,:*

6%! ."$=;

2-'5=

(/:,062.{1/3

)4>-)>.8.

1,&51&6 6

$#6 ;5:3

,(>**"" %3

==$">"*|9=

Vimfjst&Ea}o-Ang}

0-'40'7!7'

-'64)076)

$/9%:'1"

=9;=!5\\

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

_getFirefoxCookie

HTTP/1.

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

update.exe

config.bin

CreatePipe

GetProcessHeap

KERNEL32.dll

GetKeyboardLayoutList

ExitWindowsEx

SetKeyboardState

MapVirtualKeyW

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

MsgWaitForMultipleObjects

GetKeyboardState

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyW

RegEnumKeyW

RegQueryInfoKeyW

RegCreateKeyExW

ADVAPI32.dll

UrlUnescapeA

SHDeleteKeyW

PathIsURLW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

PFXImportCertStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpQueryInfoA

InternetCrackUrlA

HttpAddRequestHeadersW

HttpOpenRequestA

HttpAddRequestHeadersA

HttpSendRequestExA

HttpSendRequestExW

HttpSendRequestW

GetUrlCacheEntryInfoW

HttpOpenRequestW

HttpEndRequestA

HttpSendRequestA

HttpEndRequestW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

VERSION.dll

WINMM.dll

PSSSSSSh

2 2$2(2,2024282

42>204:4

Process: %s

Input: %s

sXXXX

SysShadow

Company: %s

Product: %s

Version: %s

Software\Microsoft\Windows\CurrentVersion\Uninstall

%u: %s | %s | %s

Chrome

Firefox

Global\XXX

nspr4.dll

chrome.dll

\StringFileInfo\xx\%s

ntdll.dll

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

SELECT * FROM %s

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

{8C23627F-B587-84AE-7E5F-D433EC1486CD}

%Documents and Settings%\%current user%\Application Data\Owkua\ziel.kue

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

ziel.kue

Global\{1A58D05A-07A2-12D5-7E5F-D433EC1486CD}

%Documents and Settings%\%current user%\Application Data\Olkeu\goep.ivb

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

goep.ivb

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps