Dropped.Generic.Malware.Sdld.C425D330_39616b1473 – Adaware

Trojan-Dropper.Win32.Sysn.cdcv (Kaspersky), Dropped:Generic.Malware.Sdld.C425D330 (B) (Emsisoft), Dropped:Generic.Malware.Sdld.C425D330 (AdAware), IRC-Worm.Win32.MyDoom.FD, GenericIRCBot.YR (Lavasoft MAS)Behaviour: Trojan-Dropper, Trojan, Worm, IRC-Worm, IRCBot, Malware

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: 39616b14731ccbded5730d882fc769b5

SHA1: ff55c534bf25f2715a5605afcb79dce4dc8ee45d

SHA256: 436ffa028016251ed0882efc88b68fbb81749d4407cb220914c3bc6d17d78524

SSDeep: 24576:/gFkg R9SDI5xJyyUACeB3gJxL9CC/XV/1FHA0dVZcn:IKgI9SGJpU8BQPL9CeVk0Zcn

Size: 950828 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 1992-06-20 01:22:17

Analyzed on: Windows7 SP1 32-bit

Summary: Trojan-Dropper. Trojan program, intended for stealth installation of other malware into user's system.

Dynamic Analysis

Payload

Behaviour	Description
IRCBot	A bot can communicate with command and control servers via IRC channel.

Process activity

The Dropped creates the following process(es):

%original file name%.exe:1480

The Dropped injects its code into the following process(es):No processes have been created.

Mutexes

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

File activity

The process %original file name%.exe:1480 makes changes in the file system.

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

C:\Windows\win32dc\Silent Hill 4(patch).exe (8953 bytes)
C:\Windows\win32dc\BattleField 1942 cheat.exe (7345 bytes)
C:\Windows\win32dc\Silent Hill 4(codes).exe (7345 bytes)
C:\Windows\win32dc\Half-Life 2(nocd).exe (7345 bytes)
C:\Windows\win32dc\Counter-Strike_trainer.exe (7345 bytes)
C:\Windows\win32dc\DAoC(hack).exe (25525 bytes)
C:\Windows\win32dc\Half-Life 2_hack.exe (7345 bytes)
C:\Windows\win32dc\Quake3 trainer.exe (7345 bytes)
C:\Windows\win32dc\Sims 2 patch.exe (12993 bytes)
C:\Windows\win32dc\UT2004 trainer.exe (12993 bytes)

Registry activity

Dropped PE files

MD5	File path
9de512c8216acb8683ab7807af1d0fbf	c:\Windows\win32dc\DAoC(hack).exe
1261dc0c0ebaa365225af1272769d36f	c:\Windows\win32dc\Silent Hill 4(patch).exe
928bb8d08e88ad68784cf69b827fadce	c:\Windows\win32dc\Sims 2 patch.exe
5c84f09b197e1961d52e14092e03927a	c:\Windows\win32dc\UT2004 trainer.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

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*

Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:1480
Delete the original Dropped file.
Delete or disinfect the following files created/modified by the Dropped:
C:\Windows\win32dc\Silent Hill 4(patch).exe (8953 bytes)
C:\Windows\win32dc\BattleField 1942 cheat.exe (7345 bytes)
C:\Windows\win32dc\Silent Hill 4(codes).exe (7345 bytes)
C:\Windows\win32dc\Half-Life 2(nocd).exe (7345 bytes)
C:\Windows\win32dc\Counter-Strike_trainer.exe (7345 bytes)
C:\Windows\win32dc\DAoC(hack).exe (25525 bytes)
C:\Windows\win32dc\Half-Life 2_hack.exe (7345 bytes)
C:\Windows\win32dc\Quake3 trainer.exe (7345 bytes)
C:\Windows\win32dc\Sims 2 patch.exe (12993 bytes)
C:\Windows\win32dc\UT2004 trainer.exe (12993 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).

*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	40592	40960	4.37354	4599c8e48266467f9472d9c0076da0aa
DATA	45056	416	512	2.59038	6723f313105be59e8f34015bac1ef0c6
BSS	49152	4493	0	0	d41d8cd98f00b204e9800998ecf8427e
.idata	57344	2332	2560	2.95832	1f3c6fef94d61a4d2beebca25d327785
.tls	61440	8	0	0	d41d8cd98f00b204e9800998ecf8427e
.rdata	65536	24	512	0.129329	bf98d008e3e41c32258f4ddad0423dfc
.reloc	69632	2396	2560	4.48773	c247e5d4f27055db8d87da84767714bb
.rsrc	73728	1536	1536	2.62048	b115dc78febf3048a6accb9f8efeb1de

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 967
ef2d2eb0996329df1775d6f51f5b214a
0d6fa406363c05c16ae6e1af0ce12c0a
03c781a6965f6b1b25fa895800b1b1e5
0197fcc9bb2f87d7c64ddf7b16f9aceb
ffbf5ca43e7f00e563bd40aba26485b8
fe4258c6e6f4e6e86f3f5fa18720c98f
fb7111c8b178d3fc398f87e375f2575c
f8a5d2ab9aa7ea718fa81a43b4d8962d
f8067216f917b5adc5a343562c43d8ff
f02d5b794b5e76952082317006b117ba
f726af446230c20ad1584fdbd907bb84
f6038034176213e4a3625f206f70d150
f54b65acaa79d05ebf0251a97634c9b3
f4ddca27d900f748616577af83cf73c6
e929d45d6a2f2a49a2979ce9089ae7e3
e521c29d51fc9df2c357e13c4b964a52
e3cd31d804be2b2634e8a8f0f57b6fc7
da70d6916a2844b007a84f6e6ca6b137
d8ae2f723b706af5b0fe92e6cbd842ca
d6ca306f597ab0b9668568f7e7fd077a
d668564cb93ba6bede5f5300bcfae4b1
d646734a392c58500ed667a8881ba2d2
cee9805f07ed037c31103eb617c78a9d
cedd7b56e3da809017c21ca038ddc0dd
cdedb27e16887f4bf47ebc048887dfa2
c4b21001f3ecb9fa868fa38f74766074

Network Activity

URLs

URL	IP
irc.lcirc.net	206.41.117.114

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

%original file name%.exe_1480:

.idata

.rdata

P.reloc

P.rsrc

PRIVMSG

JOIN

PRIVMSG

:File Executed

(netbios_invalidpass:

File(%cur%\

File(%sys%\

rndnick

NICK

join

%sys%\

%cur%\

%rnddir%\%rand%.exe

system.ini

explorer.exe

.com "win2k" :

DCPlusPlus.xml

dcplusplus.xml

%sys%

%cur%

\WINDOWS\Start Menu\Programs\Startup\

netapi32.dll

%rnddir%\%rand%.com

irc.lcirc.net

kernel32.dll

user32.dll

GetKeyboardType

advapi32.dll

RegOpenKeyExA

RegCloseKey

oleaut32.dll

GetWindowsDirectoryA

mpr.dll

wsock32.dll

shell32.dll

ShellExecuteA

wininet.dll

URLMON.DLL

URLDownloadToFileA

KWindows

&pWebServer