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.

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:

ZonesLockedCacheCounterMutex
ZonesCounterMutex
ZonesCacheCounterMutex
RasPbFile
WininetProxyRegistryMutex
WininetConnectionMutex
WininetStartupMutex
c:!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

VersionInfo

No information is available.

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL	IP
store.extremesportsevents.net	209.99.17.27

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET POLICY HTTP Request on Unusual Port Possibly Hostile
SURICATA HTTP response field missing colon

Traffic

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

.text

`.rdata

.data

.wdata

] %s

] Error: %s

s %8s %s %s

pid ] terminated

pid ]

id: 0xX

host: %s

port: %d

delay: %d

uptime ].dh

%d %s

%s\%s

Zero length file refused %s

Saved %d bytes to %s

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)

wininet.dll

HttpOpenRequestA

HttpSendRequestA

HttpQueryInfoA

SHLWAPI.dll

PSAPI.DLL

PeekNamedPipe

CreatePipe

GetProcessHeap

KERNEL32.dll

RegCloseKey

RegCreateKeyA

ADVAPI32.dll

store.extremesportsevents.net

/index.php

FTPjKS

FtPj;S

C.PjRV

xSSSh

operator

GetProcessWindowStation

portuguese-brazilian

C:\Projects\nemesis-gemina\nemesis\bin\carriers\ezlzma_x86_exe.pdb

USER32.dll

GetCPInfo

zcÁ

c:\%original file name%.exe

<requestedExecutionLevel level="asInvoker" uiAccess="false"></requestedExecutionLevel>

mscoree.dll

- Attempt to initialize the CRT more than once.

- CRT not initialized

- floating point support not loaded

KERNEL32.DLL

ADVAPI32.DLL

WUSER32.DLL

%original file name%.exe_532_rwx_003B0000_00008000:

#>{%F

VtP%X

%original file name%.exe_532_rwx_00400000_0000B000:

.text

`.rdata

.data

.wdata

] %s

] Error: %s

s %8s %s %s

pid ] terminated

pid ]

id: 0xX

host: %s

port: %d

delay: %d

uptime ].dh

%d %s

%s\%s

Zero length file refused %s

Saved %d bytes to %s

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)

wininet.dll

HttpOpenRequestA

HttpSendRequestA

HttpQueryInfoA

SHLWAPI.dll

PSAPI.DLL

PeekNamedPipe

CreatePipe

GetProcessHeap

KERNEL32.dll

RegCloseKey

RegCreateKeyA

ADVAPI32.dll

store.extremesportsevents.net

/index.php

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
2. Delete the original Backdoor file.
   
3. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
4. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.