ThreatExpert Report: Trojan.Win32.Agent.ptdt, Generic Dropper!1cz, Mal/Generic-L..

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Submission Summary:

Submission details:

Submission received: 16 November 2011, 18:12:27
Processing time: 9 min 7 sec
Submitted sample:

File MD5: 0x2E833AC26483AAAD13A8051BC857EF15
File SHA-1: 0x8D10CF3C1C2F144F0EAD732BA1975EEBC915996C
Filesize: 342,016 bytes
Alias:

Trojan.Win32.Agent.ptdt [Kaspersky Lab]
Generic Dropper!1cz [McAfee]
Mal/Generic-L [Sophos]
TrojanDropper:Win32/Sirefef.B [Microsoft]
Trojan-PWS.Win32.Tepfer [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\3439254774	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	[file and pathname of the sample #1]	342,016 bytes	MD5: 0x2E833AC26483AAAD13A8051BC857EF15 SHA-1: 0x8D10CF3C1C2F144F0EAD732BA1975EEBC915996C	Trojan.Win32.Agent.ptdt [Kaspersky Lab] Generic Dropper!1cz [McAfee] Mal/Generic-L [Sophos] TrojanDropper:Win32/Sirefef.B [Microsoft] Trojan-PWS.Win32.Tepfer [Ikarus]

Note:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

The following Alternate Data Streams were created in the system:

#	ADS name(s)	ADS Size	ADS Hash	Alias
1	%Windir%\3439254774:153289011.exe	784 bytes	MD5: 0x227A74A7A6112CE3F13D0F6207326B4A SHA-1: 0xEA01E0638BD0263A94CE1039D447C11FE66B83A8	Troj/ZAccess-I [Sophos] Trojan:Win32/Sirefef.N [Microsoft]
2	%Windir%\Prefetch\3439254774:153289011.EXE-2DC57F1E.pf	2,014 bytes	MD5: 0x2DAC24FC030F39746E7ED215CEB0E1EC SHA-1: 0x06D43B81950368245324E58BDBB6822B2601CD21	(not available)

The following directories were created:

%Windir%\$NtUninstallKB63471$
%Windir%\assembly\GAC

Memory Modifications

Attention! The following process was intentionally hidden from the user:

Process Name	Main Module Size
3439254774	784 bytes

There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
svchost.exe	%System%\svchost.exe	32,768 bytes

Notes:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{e28737a6-9885-8927-b114-8a54e0fa45f0}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\f6dcfecc
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\f6dcfecc

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{e28737a6-9885-8927-b114-8a54e0fa45f0}]

u = 0x33435053
cid = 75 84 9A 3A 3B 92 89 48

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\f6dcfecc]

Type = 0x00000001
Start = 0x00000003
ImagePath = "\systemroot\3439254774:153289011.exe"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\f6dcfecc]

Type = 0x00000001
Start = 0x00000003
ImagePath = "\systemroot\3439254774:153289011.exe"

[HKEY_CURRENT_USER\Software\Microsoft]

arqefpfhfupcmh = 0x00000001

Other details

The following HTTP URLs were started reading:

http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=1
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=21
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=4
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=5
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=6
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=7
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=8
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=23
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=24
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=25
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=26
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=27
http://rldbcyjp.cn/stat2.php?w=860049491&i=392af8440000000075849a3a3b928948&a=11

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