Paris Hilton Nuke Video Spam

Recently we received many spams related to "Paris Hilton Nuke Video". Of course, the content contains a malicious link, when clicked, it will download "video-paris-hilton.avi.exe", some antivirus scanner detects it as "Trojan-Downloader.Win32.Renos.AQ".

The following screens will be displayed when clicked the link in this email:

























Wireshark captures files downloaded as below:



==The following focus on Web Reputation Service Testing==

Google Search CANNOT find it as below:



McAfee SiteAdvisor CANNOT find it as below:



Trend Micro WRS CAN find it as below:



finjan URL analysis CAN find it as below:



Dr.Web URL analysis CANNOT find it (error) as below:



Exploit Prevention Labs's LinkScanner CANNOT find it as below:



Symantec Safe Web CANNOT find it as below:



==The following focus on AV Scanners Testing==

File video-paris-hilton.avi.exe received on 08.20.2008 07:59:43 (CET)

Result: 8/36 (22.22%)

Antivirus Version Last Update Result
AhnLab-V3 2008.8.19.0 2008.08.20 -
AntiVir 7.8.1.23 2008.08.19 -
Authentium 5.1.0.4 2008.08.20 -
Avast 4.8.1195.0 2008.08.19 -
AVG 8.0.0.161 2008.08.20 -
BitDefender 7.2 2008.08.20 MemScan:Trojan.FakeAlert.AAF
CAT-QuickHeal 9.50 2008.08.19 (Suspicious) - DNAScan
ClamAV 0.93.1 2008.08.19 -
DrWeb 4.44.0.09170 2008.08.20 -
eSafe 7.0.17.0 2008.08.19 Suspicious File
eTrust-Vet 31.6.6036 2008.08.19 -
Ewido 4.0 2008.08.19 -
F-Prot 4.4.4.56 2008.08.19 -
F-Secure 7.60.13501.0 2008.08.20 -
Fortinet 3.14.0.0 2008.08.20 -
GData 2.0.7306.1023 2008.08.20 -
Ikarus T3.1.1.34.0 2008.08.20 Trojan-Downloader.Win32.Renos.AQ
K7AntiVirus 7.10.421 2008.08.19 -
Kaspersky 7.0.0.125 2008.08.20 -
McAfee 5364 2008.08.19 -
Microsoft 1.3807 2008.08.20 TrojanDownloader:Win32/Renos.gen!AQ
NOD32v2 3369 2008.08.19 -
Norman 5.80.02 2008.08.19 AntiVirus2008.gen2
Panda 9.0.0.4 2008.08.19 -
PCTools 4.4.2.0 2008.08.19 -
Prevx1 V2 2008.08.20 Malicious Software
Rising 20.58.20.00 2008.08.20 -
Sophos 4.32.0 2008.08.20 Troj/FakeAle-FT
Sunbelt 3.1.1546.1 2008.08.15 -
Symantec 10 2008.08.20 -
TheHacker 6.3.0.5.054 2008.08.19 -
TrendMicro 8.700.0.1004 2008.08.20 -
VBA32 3.12.8.3 2008.08.19 -
ViRobot 2008.8.19.1341 2008.08.20 -
VirusBuster 4.5.11.0 2008.08.19 -
Webwasher-Gateway 6.6.2 2008.08.19 -

Additional information
File size: 183296 bytes
MD5...: 2d77a6d4fa2df29b094e290512b087a0
SHA1..: 0a1dd7596d435cf4a6249348a038c7457f94a678
SHA256: 590afe46bfa375cf000ad323a2744bdb108e3c27faa4b90080df0f64a0d94ab7
SHA512: 5308b467bd8ae5474aea385c5577f00fd899f7640b24c88d8105aabd5addf19e
f20493c3e4e55386eb1424b48286ee21b61034693a684b0076d540e0e4f72788
PEiD..: -
PEInfo: PE Structure information

( base data )
entrypointaddress.: 0x401000
timedatestamp.....: 0x48ab195e (Tue Aug 19 19:05:02 2008)
machinetype.......: 0x14c (I386)

( 5 sections )
name viradd virsiz rawdsiz ntrpy md5
CODE 0x1000 0xc6ab4 0x2600 6.41 a4d45d87b08f8d94277159e0fe8a9e15
DATA 0xc8000 0x296a4 0x29200 8.00 45367edbb00e3b6724877268637ddde8
.rsrc 0xf2000 0x1000 0xa00 2.38 8ec0154fb3c0c7811715af24c77b9e13
.idata 0xf3000 0x818 0x600 2.83 649de547ef6b5432da99091f5e2cb9b0
.pack32 0xf4000 0x1000 0x0 0.00 d41d8cd98f00b204e9800998ecf8427e

( 3 imports )
> kernel32.dll: OpenSemaphoreA
> user32.dll: TranslateAcceleratorA, OemToCharW, AttachThreadInput, CreateCaret, MessageBoxExA, UserClientDllInitialize, GetLastInputInfo, PeekMessageA, DdeGetLastError, DdeQueryConvInfo, LoadLocalFonts, DdeConnect
> gdi32.dll: Rectangle, CreateCompatibleBitmap, GetDeviceCaps, GdiIsPlayMetafileDC, GdiGetLocalFont, GetFontData, GdiCleanCacheDC, GdiEntry16, CreateMetaFileA, SetPaletteEntries, AddFontMemResourceEx, AbortDoc

After executed, it has the following behaviors:

[Added process]
C:\Documents and Settings\Administrator\Desktop\video-paris-hilton.avi.exe
C:\WINDOWS\system32\pphcl76j0eg03.exe
C:\Program Files\rhcg76j0eg03\rhcg76j0eg03.exe

[DLL injection]
C:\Program Files\rhcg76j0eg03\msvcp71.dll
C:\Program Files\rhcg76j0eg03\msvcr71.dll

[Added file]
C:\Documents and Settings\Administrator\Application Data\Microsoft\Internet Explorer\Quick Launch\Antivirus XP 2008.lnk
C:\Documents and Settings\Administrator\Local Settings\Temp\.ttA7.tmp
C:\Documents and Settings\Administrator\Local Settings\Temp\.ttA7.tmp.vbs
C:\Documents and Settings\All Users\Desktop\Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008\Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008\How to Register Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008\License Agreement.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008\Register Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008\Uninstall.lnk
C:\Documents and Settings\All Users\Start Menu\Programs\Antivirus XP 2008.lnk
C:\Program Files\rhcg76j0eg03\database.dat
C:\Program Files\rhcg76j0eg03\license.txt
C:\Program Files\rhcg76j0eg03\MFC71.dll
C:\Program Files\rhcg76j0eg03\MFC71ENU.DLL
C:\Program Files\rhcg76j0eg03\msvcp71.dll
C:\Program Files\rhcg76j0eg03\msvcr71.dll
C:\Program Files\rhcg76j0eg03\rhcg76j0eg03.exe
C:\Program Files\rhcg76j0eg03\rhcg76j0eg03.exe.local
C:\Program Files\rhcg76j0eg03\Uninstall.exe
C:\WINDOWS\system32\blphcl76j0eg03.scr
C:\WINDOWS\system32\lphcl76j0eg03.exe
C:\WINDOWS\system32\phcl76j0eg03.bmp
C:\WINDOWS\system32\pphcl76j0eg03.exe
C:\WINDOWS\system32\Restore\MachineGuid.txt

[Added registry]
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Value=lphcl76j0eg03
Data=C:\WINDOWS\system32\lphcl76j0eg03.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Value=SMrhcg76j0eg03
Data=C:\Program Files\rhcg76j0eg03\rhcg76j0eg03.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\rhcg76j0eg03
Value=DisplayName
Data=AntivirXP08

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\rhcg76j0eg03
Value=UninstallString
Data=”C:\Program Files\rhcg76j0eg03\uninstall.exe”

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\rhcg76j0eg03