HEUR:Backdoor.Win32.CosmicDuke.gen (Kaspersky), Backdoor.Generic.913290 (B) (Emsisoft), Backdoor.Generic.913290 (AdAware)Behaviour: Backdoor
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: edf7a81dab0bf0520bfb8204a010b730
SHA1: ecd2feb0afd5614d7575598c63d9b0146a67ecaa
SHA256: bd4928921ddadb44f9f573da61dac034533bf14fe38acd5754f3ccec1d566300
SSDeep: 3072:krRc FtgA/Klu3KcwWoE7D/3EakXDJj3MwTsG ufQSv:URDFtgA/ZIqD6DJbLItK
Size: 705536 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-12-14 18:44:11
Analyzed on: WindowsXP SP3 32-bit
Summary: Backdoor. Malware that enables a remote control of victim's machine.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Backdoor creates the following process(es):No processes have been created.The Backdoor injects its code into the following process(es):
%original file name%.exe:532
Mutexes
The following mutexes were created/opened:
ZonesLockedCacheCounterMutexZonesCounterMutexZonesCacheCounterMutexRasPbFileWininetProxyRegistryMutexWininetConnectionMutexWininetStartupMutexc:!documents and settings!adm!local settings!history!history.ie5!c:!documents and settings!adm!cookies!c:!documents and settings!adm!local settings!temporary internet files!content.ie5!_!MSFTHISTORY!_
File activity
No files have been created.
Registry activity
The process %original file name%.exe:532 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1E 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2C C3 FB 83 F0 8A 61 EA F5 95 31 50 8D 82 BE 9B"
[HKCU\Software\Microsoft\ApplicationManager]
"AppID" = "2341244043"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"
The Backdoor modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"
The Backdoor modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
"ProxyBypass" = "1"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Backdoor modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Backdoor deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"
Dropped PE files
There are no dropped PE files.
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):No processes have been created.
- Delete the original Backdoor file.
- Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.
Static Analysis
VersionInfo
No information is available.
No information is available.
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 156271 | 156672 | 4.61075 | 7196537e6579a12df0351e55789578a8 |
.rdata | 163840 | 18506 | 18944 | 3.39579 | a5cca1565bc4fa2a6b900ca631f78cb8 |
.data | 184320 | 533312 | 528384 | 0.302076 | b7d80286192a246747d498143ba73029 |
.rsrc | 720896 | 436 | 512 | 3.53365 | 7ff190c267c443aa21a6700fb75b78bf |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
URL | IP |
---|---|
store.extremesportsevents.net | 209.99.17.27 |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Backdoor connects to the servers at the folowing location(s):
Strings from Dumps
%original file name%.exe_532:
.text
.text
`.rdata
`.rdata
.data
.data
.wdata
.wdata
] %s
] %s
] Error: %s
] Error: %s
s %8s %s %s
s %8s %s %s
pid ] terminated
pid ] terminated
pid ]
pid ]
id: 0xX
id: 0xX
host: %s
host: %s
port: %d
port: %d
delay: %d
delay: %d
uptime ].dh
uptime ].dh
%d %s
%d %s
%s\%s
%s\%s
Zero length file refused %s
Zero length file refused %s
Saved %d bytes to %s
Saved %d bytes to %s
01234567
01234567
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
wininet.dll
wininet.dll
HttpOpenRequestA
HttpOpenRequestA
HttpSendRequestA
HttpSendRequestA
HttpQueryInfoA
HttpQueryInfoA
SHLWAPI.dll
SHLWAPI.dll
PSAPI.DLL
PSAPI.DLL
PeekNamedPipe
PeekNamedPipe
CreatePipe
CreatePipe
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
RegCloseKey
RegCloseKey
RegCreateKeyA
RegCreateKeyA
ADVAPI32.dll
ADVAPI32.dll
store.extremesportsevents.net
store.extremesportsevents.net
/index.php
/index.php
FTPjKS
FTPjKS
FtPj;S
FtPj;S
C.PjRV
C.PjRV
xSSSh
xSSSh
operator
operator
GetProcessWindowStation
GetProcessWindowStation
portuguese-brazilian
portuguese-brazilian
C:\Projects\nemesis-gemina\nemesis\bin\carriers\ezlzma_x86_exe.pdb
C:\Projects\nemesis-gemina\nemesis\bin\carriers\ezlzma_x86_exe.pdb
USER32.dll
USER32.dll
GetCPInfo
GetCPInfo
zcÃ
zcÃ
c:\%original file name%.exe
c:\%original file name%.exe
mscoree.dll
mscoree.dll
- Attempt to initialize the CRT more than once.
- Attempt to initialize the CRT more than once.
- CRT not initialized
- CRT not initialized
- floating point support not loaded
- floating point support not loaded
KERNEL32.DLL
KERNEL32.DLL
ADVAPI32.DLL
ADVAPI32.DLL
WUSER32.DLL
WUSER32.DLL
%original file name%.exe_532_rwx_003B0000_00008000:
#>{%F
#>{%F
VtP%X
VtP%X
%original file name%.exe_532_rwx_00400000_0000B000:
.text
.text
`.rdata
`.rdata
.data
.data
.wdata
.wdata
] %s
] %s
] Error: %s
] Error: %s
s %8s %s %s
s %8s %s %s
pid ] terminated
pid ] terminated
pid ]
pid ]
id: 0xX
id: 0xX
host: %s
host: %s
port: %d
port: %d
delay: %d
delay: %d
uptime ].dh
uptime ].dh
%d %s
%d %s
%s\%s
%s\%s
Zero length file refused %s
Zero length file refused %s
Saved %d bytes to %s
Saved %d bytes to %s
01234567
01234567
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
wininet.dll
wininet.dll
HttpOpenRequestA
HttpOpenRequestA
HttpSendRequestA
HttpSendRequestA
HttpQueryInfoA
HttpQueryInfoA
SHLWAPI.dll
SHLWAPI.dll
PSAPI.DLL
PSAPI.DLL
PeekNamedPipe
PeekNamedPipe
CreatePipe
CreatePipe
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
RegCloseKey
RegCloseKey
RegCreateKeyA
RegCreateKeyA
ADVAPI32.dll
ADVAPI32.dll
store.extremesportsevents.net
store.extremesportsevents.net
/index.php
/index.php