Trojan.Microfake.D_d3bc6986ad

by malwarelabrobot on September 11th, 2014 in Malware Descriptions.

Trojan.Win32.MicroFake.ba (Kaspersky), Trojan.Microfake.D (B) (Emsisoft), Trojan.Microfake.D (AdAware), DDoS.Win32.Nitol.FD, DDoSNitol.YR (Lavasoft MAS)
Behaviour: Trojan


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

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: d3bc6986ad9d65ab91ac86a82c6e359d
SHA1: 3ac78041556018ff1cc49061db6f4510e729e3b7
SHA256: dfd538eaadbb92d35023113209d458ab5a6251e448df44e62728e43258c4c883
SSDeep: 3072:nymMB9eO6yHl90QabZWXCy24efTcebUaKTSf91BW08ZkicASx66VCCkdV:nbMT6yHl2EX3efYOGTSf7BW08ZkPx660
Size: 190464 bytes
File type: DLL
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: AirInstaller
Created at: 2010-06-08 12:59:36
Analyzed on: WindowsXPESX SP3 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

regsvr32.exe:276
hrlB2.tmp:1708

The Trojan injects its code into the following process(es):

xohdok.exe:440
svchost.exe:1752

Mutexes

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

File activity

The process regsvr32.exe:276 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\hrlB2.tmp (182 bytes)

The process hrlB2.tmp:1708 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%System%\xohdok.exe (673 bytes)

Registry activity

The process regsvr32.exe:276 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "82 A0 F7 97 8B 47 54 97 8D D7 38 FC 0D E4 CD 1F"

The process hrlB2.tmp:1708 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "05 A6 0D 27 AD 86 90 E8 6C D6 50 51 37 8B AA 07"

Dropped PE files

MD5 File path
4c2341acf8025f997c901217d30bce89 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\SOFTWARE.LOG
4c2341acf8025f997c901217d30bce89 c:\WINDOWS\system32\xohdok.exe

HOSTS file anomalies

The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 734 bytes in size. The following strings are added to the hosts file listed below:

127.0.0.1 jL.chura.pl


Rootkit activity

The Trojan installs the following user-mode hooks in ntdll.dll:

NtQueryInformationProcess
ZwOpenFile
NtDeviceIoControlFile
NtCreateProcessEx
NtCreateProcess
NtCreateFile

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 2860 3072 3.84485 c9b6b9fbded3d4764666702b145428d1
.rdata 8192 2505 2560 3.36056 6951ee1a0ff3a7f5a44727b4713506a3
.data 12288 672 0 0 d41d8cd98f00b204e9800998ecf8427e
.rsrc 16384 182932 183296 5.13266 3500fe47d2355073f5eadb92f716f873
.reloc 200704 494 512 3.52939 cfa8d04dd000bb30ab126902176ed40d

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

regsvr32.exe_276:

.text
`.data
.rsrc
msvcrt.dll
ADVAPI32.dll
KERNEL32.dll
NTDLL.DLL
USER32.dll
ole32.dll
regsvr32.pdb
_wcmdln
RegCloseKey
RegOpenKeyExW
Excessive # of DLL's on cmdline
5.1.2600.5512 (xpsp.080413-2105)
REGSVR32.EXE
Windows
Operating System
5.1.2600.5512
Usage: regsvr32 [/u] [/s] [/n] [/i[:cmdline]] dllname
Call DllInstall passing it an optional [cmdline]; when used with /u calls dll uninstall
Unrecognized flag: %1"Extra argument on command line: This command is only valid when an OLE Custom Control project is open.
LoadLibrary("%1") failed - ,%1 was loaded, but the %2 entry point was not found.
%1 does not appear to be a .DLL or .OCX file.V%1 was loaded, but the %2 entry point was not found.
OleUninitialize failed.["%1" is not an executable file and no registration

xohdok.exe_440:

.text
.rdata
@.data
.rsrc
GET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htm
MFC42.DLL
MSVCRT.dll
_acmdln
WinExec
KERNEL32.dll
USER32.dll
RegCloseKey
RegOpenKeyExA
RegOpenKeyA
ADVAPI32.dll
ShellExecuteA
SHELL32.dll
WS2_32.dll
WINMM.dll
InternetOpenUrlA
WININET.dll
262975953262975953
%u.%u.%u.%u
hra%u.dll
iexplore.exe
stf%c%c%c%c%c.exe
PlusCtrl.dll
kernel32.dll
SOFTWARE.LOG
%c%c%c%c%c%c.exe
%u MB
%u MHz
Windows NT
Windows 7
Windows 2008
Windows Vista
Windows 2003
Windows XP
Windows 2000
SOFTWARE\Microsoft\Windows NT\CurrentVersion
\Program Files\Internet Explorer\iexplore.exe
#0%s!
%s/%s
GET %s HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
User-Agent:Mozilla/4.0 (compatible; MSIE %d.0; Windows NT %d.1; SV1)
Host: %s:%d
Host: %s
User-Agent:Mozilla/5.0 (X11; U; Linux i686; en-US; re:1.4.0) Gecko/20080808 Firefox/%d.0
Referer: hXXp://%s:80/hXXp://%s
%s %s%s
User-Agent:Mozilla/4.0 (compatible; MSIE %d.00; Windows NT %d.0; MyIE 3.01)
User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
%d.%d.%d.%d
192.168.1.244
svchost.exe
ntdll.dll
`.rdata
@.reloc
SHLWAPI.dll
lpk.dll
]Wi%d
.tog"d
%XJ$i
t!%C_
"j.tD]f
%x0?]
|4.eBQ
[email protected]
it.ia
cmd /c RD /s /q "%s"
"%s" a -r -ep1"%s" "%s" "%s\lpk.dll"
"%s" x "%s" *.exe "%s\"
cmd /c %s vb "%s" lpk.dll|find /i "lpk.dll"
rar.exe
1, 0, 0, 1
server.EXE

xohdok.exe_440_rwx_00417000_00002000:

%XJ$i

xohdok.exe_440_rwx_006D0000_00032000:

.text
.rdata
@.data
.rsrc
GET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htm
MFC42.DLL
MSVCRT.dll
_acmdln
WinExec
KERNEL32.dll
USER32.dll
RegCloseKey
RegOpenKeyExA
RegOpenKeyA
ADVAPI32.dll
ShellExecuteA
SHELL32.dll
WS2_32.dll
WINMM.dll
InternetOpenUrlA
WININET.dll
262975953262975953
%u.%u.%u.%u
hra%u.dll
iexplore.exe
stf%c%c%c%c%c.exe
PlusCtrl.dll
kernel32.dll
SOFTWARE.LOG
%c%c%c%c%c%c.exe
%u MB
%u MHz
Windows NT
Windows 7
Windows 2008
Windows Vista
Windows 2003
Windows XP
Windows 2000
SOFTWARE\Microsoft\Windows NT\CurrentVersion
\Program Files\Internet Explorer\iexplore.exe
#0%s!
%s/%s
GET %s HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
User-Agent:Mozilla/4.0 (compatible; MSIE %d.0; Windows NT %d.1; SV1)
Host: %s:%d
Host: %s
User-Agent:Mozilla/5.0 (X11; U; Linux i686; en-US; re:1.4.0) Gecko/20080808 Firefox/%d.0
Referer: hXXp://%s:80/hXXp://%s
%s %s%s
User-Agent:Mozilla/4.0 (compatible; MSIE %d.00; Windows NT %d.0; MyIE 3.01)
User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
%d.%d.%d.%d
192.168.1.244
svchost.exe
ntdll.dll
`.rdata
@.reloc
SHLWAPI.dll
lpk.dll
]Wi%d
.tog"d
%XJ$i
t!%C_
"j.tD]f
%x0?]
|4.eBQ
[email protected]
it.ia
cmd /c RD /s /q "%s"
"%s" a -r -ep1"%s" "%s" "%s\lpk.dll"
"%s" x "%s" *.exe "%s\"
cmd /c %s vb "%s" lpk.dll|find /i "lpk.dll"
rar.exe
1, 0, 0, 1
server.EXE

svchost.exe_1752:

.text
.rdata
@.data
.rsrc
GET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htm
MFC42.DLL
MSVCRT.dll
_acmdln
WinExec
KERNEL32.dll
USER32.dll
RegCloseKey
RegOpenKeyExA
RegOpenKeyA
ADVAPI32.dll
ShellExecuteA
SHELL32.dll
WS2_32.dll
WINMM.dll
InternetOpenUrlA
WININET.dll
999mu.3322.org:5565
262975953262975953
%u.%u.%u.%u
hra%u.dll
iexplore.exe
stf%c%c%c%c%c.exe
PlusCtrl.dll
kernel32.dll
SOFTWARE.LOG
%c%c%c%c%c%c.exe
%u MB
%u MHz
Windows NT
Windows 7
Windows 2008
Windows Vista
Windows 2003
Windows XP
Windows 2000
SOFTWARE\Microsoft\Windows NT\CurrentVersion
\Program Files\Internet Explorer\iexplore.exe
#0%s!
%s/%s
GET %s HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
User-Agent:Mozilla/4.0 (compatible; MSIE %d.0; Windows NT %d.1; SV1)
Host: %s:%d
Host: %s
User-Agent:Mozilla/5.0 (X11; U; Linux i686; en-US; re:1.4.0) Gecko/20080808 Firefox/%d.0
Referer: hXXp://%s:80/hXXp://%s
%s %s%s
User-Agent:Mozilla/4.0 (compatible; MSIE %d.00; Windows NT %d.0; MyIE 3.01)
User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
%d.%d.%d.%d
192.168.1.244
svchost.exe
ntdll.dll
`.rdata
@.reloc
SHLWAPI.dll
lpk.dll
]Wi%d
.tog"d
%XJ$i
t!%C_
"j.tD]f
%x0?]
|4.eBQ
[email protected]
it.ia
cmd /c RD /s /q "%s"
"%s" a -r -ep1"%s" "%s" "%s\lpk.dll"
"%s" x "%s" *.exe "%s\"
cmd /c %s vb "%s" lpk.dll|find /i "lpk.dll"
rar.exe
1, 0, 0, 1
server.EXE

svchost.exe_1752_rwx_00400000_00032000:

.text
.rdata
@.data
.rsrc
GET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htmGET ^&&%$%$^%$#^&**(*((&*^%$##$%^&*(*&^%$%^&*.htm
MFC42.DLL
MSVCRT.dll
_acmdln
WinExec
KERNEL32.dll
USER32.dll
RegCloseKey
RegOpenKeyExA
RegOpenKeyA
ADVAPI32.dll
ShellExecuteA
SHELL32.dll
WS2_32.dll
WINMM.dll
InternetOpenUrlA
WININET.dll
999mu.3322.org:5565
262975953262975953
%u.%u.%u.%u
hra%u.dll
iexplore.exe
stf%c%c%c%c%c.exe
PlusCtrl.dll
kernel32.dll
SOFTWARE.LOG
%c%c%c%c%c%c.exe
%u MB
%u MHz
Windows NT
Windows 7
Windows 2008
Windows Vista
Windows 2003
Windows XP
Windows 2000
SOFTWARE\Microsoft\Windows NT\CurrentVersion
\Program Files\Internet Explorer\iexplore.exe
#0%s!
%s/%s
GET %s HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
User-Agent:Mozilla/4.0 (compatible; MSIE %d.0; Windows NT %d.1; SV1)
Host: %s:%d
Host: %s
User-Agent:Mozilla/5.0 (X11; U; Linux i686; en-US; re:1.4.0) Gecko/20080808 Firefox/%d.0
Referer: hXXp://%s:80/hXXp://%s
%s %s%s
User-Agent:Mozilla/4.0 (compatible; MSIE %d.00; Windows NT %d.0; MyIE 3.01)
User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
%d.%d.%d.%d
192.168.1.244
svchost.exe
ntdll.dll
`.rdata
@.reloc
SHLWAPI.dll
lpk.dll
]Wi%d
.tog"d
%XJ$i
t!%C_
"j.tD]f
%x0?]
|4.eBQ
[email protected]
it.ia
cmd /c RD /s /q "%s"
"%s" a -r -ep1"%s" "%s" "%s\lpk.dll"
"%s" x "%s" *.exe "%s\"
cmd /c %s vb "%s" lpk.dll|find /i "lpk.dll"
rar.exe
1, 0, 0, 1
server.EXE


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. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    regsvr32.exe:276
    hrlB2.tmp:1708

  3. Delete the original Trojan file.
  4. Delete or disinfect the following files created/modified by the Trojan:

    %Documents and Settings%\%current user%\Local Settings\Temp\hrlB2.tmp (182 bytes)
    %System%\xohdok.exe (673 bytes)

  5. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
    127.0.0.1 localhost
  6. Reboot the computer.

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

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