Gen.Trojan.Heur.AutoIT.10_30ed98b5d9 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

kuow.exe:1176
kuow.exe:1196
%original file name%.exe:212
%original file name%.exe:1332

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

Explorer.EXE:532

Mutexes

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

File activity

The process %original file name%.exe:212 makes changes in the file system.

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

%Documents and Settings%\%current user%\Application Data\Peox\kuow.exe (3918 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp615908ff.bat (177 bytes)

Registry activity

The process kuow.exe:1176 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B1 1C 5F 75 EC D0 73 CF E7 05 EC 6E 15 CD 72 6F"

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

[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 kuow.exe:1196 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "54 C1 2B F0 36 DE 62 E4 AF 81 1A 0B 9F 0C 2D 3E"

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

The process %original file name%.exe:212 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 C6 72 51 4F 09 43 35 B9 6D FC 7B 4D B3 89 74"

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

The process %original file name%.exe:1332 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "60 A3 8D C5 42 D2 2D 7D 60 D0 7B 95 9C EB 86 11"

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

[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
b5afc0ee3948d46bca4c11646603732b	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Peox\kuow.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):
kuow.exe:1176
kuow.exe:1196
%original file name%.exe:212
%original file name%.exe:1332
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Peox\kuow.exe (3918 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp615908ff.bat (177 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:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 3, 3, 4, 0
File Description:
Comments:
Language: Chinese (Simplified, PRC)

Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: 3, 3, 4, 0File Description: Comments: Language: Chinese (Simplified, PRC)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	529573	529920	4.5745	09b535a462dc9bc31ff989ae945245fb
.rdata	536576	54946	55296	3.40395	ee9f84e12eed9971b81699f57b3171e9
.data	593920	94008	12800	2.85045	b2ac8e862b8d6d111d389ff9f306d5f3
.rsrc	688128	179412	179712	5.1425	71109833eac2e17472095994c411e7f9

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://simplism.hk/demo/crm/example/default/config.bin	202.67.155.148
hxxp://simplism.hk/	202.67.155.148
hxxp://www.simplism.hk/	202.67.155.148

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /demo/crm/example/default/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: simplism.hk

Cache-Control: no-cache

HTTP/1.1 302 Moved Temporarily

Date: Fri, 20 Nov 2015 00:58:08 GMT

Server: Apache/2.4.6 (Unix) OpenSSL/1.0.0-fips mod_bwlimited/1.4

X-Powered-By: PHP/5.2.17

Location: hXXp://VVV.simplism.hk/

Content-Length: 0

Connection: close

Content-Type: text/html

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: VVV.simplism.hk

HTTP/1.1 200 OK

Date: Fri, 20 Nov 2015 00:58:09 GMT

Server: Apache/2.4.6 (Unix) OpenSSL/1.0.0-fips mod_bwlimited/1.4

X-Powered-By: PHP/5.2.17

X-Pingback: hXXp://VVV.simplism.hk/xmlrpc.php

Connection: close

Transfer-Encoding: chunked

Content-Type: text/html; charset=UTF-8

105c..<!DOCTYPE html>..<html lang="en-GB">..<head>..<meta charset="UTF-8">..<meta name="viewport" content="width=device-width, initial-scale=1">..<title>SIMPLISM | Creative Multimedia Production</title>..<link rel="profile" href="http://gmpg.org/xfn/11">..<link rel="pingback" href="hXXp://VVV.simplism.hk/xmlrpc.php">..<link rel="alternate" type="application/rss xml" title="SIMPLISM » Feed" href="hXXp://VVV.simplism.hk/feed/" />.<link rel="alternate" type="application/rss xml" title="SIMPLISM » Comments Feed" href="hXXp://VVV.simplism.hk/comments/feed/" />...<script type="text/javascript">....window._wpemojiSettings = {"baseUrl":"http:\/\/s.w.org\/images\/core\/emoji\/72x72\/","ext":".png","source":{"concatemoji":"http:\/\/VVV.simplism.hk\/wp-includes\/js\/wp-emoji-release.min.js?ver=4.3.1"}};....!function(a,b,c){function d(a){var c=b.createElement("canvas"),d=c.getContext&&c.getContext("2d");return d&&d.fillText?(d.textBaseline="top",d.font="600 32px Arial","flag"===a?(d.fillText(String.fromCharCode(55356,56812,55356,56807),0,0),c.toDataURL().length>3e3):(d.fillText(String.fromCharCode(55357,56835),0,0),0!==d.getImageData(16,16,1,1).data[0])):!1}function e(a){var c=b.createElement("script");c.src=a,c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var f,g;c.supports={simple:d("simple"),flag:d("flag")},c.DOMReady=!1,c.readyCallback=function(){c.DOMReady=!0},c.supports.simple&&c.supports.flag||(g=functio

<<< skipped >>>

Map

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

Strings from Dumps

Explorer.EXE_532_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\Usogru\enel.yqy

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

enel.yqy

Global\{4C4467FD-9547-4848-AF2F-43C5FFDD57B7}

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

k{DA3FD5D8-2762-DE33-AF2F-43C5FFDD57B7}

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps