MD5: c964a57c847921966322a65a1ab4131a
SHA1: 32511aa19c58d6a1f239495401cdbe4ad9cc69cb
SHA256: d821b7c5355c092a1a422387ba61a5bd3520d8a72a27ef0c18d45f3b90db76ef
SSDeep: 24576:/1/aGLDCM4D8ayGMZo8/8Z/dKOIEE0tj67zg/M0wX:wD8ayGMZojnost67k/M0wX
Size: 1010921 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company:
Created at: no data
Analyzed on: Windows7 SP1 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):

bnjdsh.exe:1636
%original file name%.exe:1944

The Trojan 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 bnjdsh.exe:1636 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\original .exe (1963131 bytes)
C:\config.sys .exe (1963131 bytes)
C:\%original file name%.exe .exe (1963131 bytes)
C:\bootmgr .exe (1963131 bytes)
C:\Boot .exe (1963131 bytes)
C:\Windows .exe (1963131 bytes)
C:\ProgramData .exe (1963131 bytes)
C:\$Recycle.Bin .exe (1963131 bytes)
C:\BOOTSECT.BAK .exe (1963131 bytes)
%Documents and Settings% .exe (1963131 bytes)
C:\totalcmd .exe (1963131 bytes)
C:\Users .exe (1963131 bytes)
C:\XELDZ .exe (1963131 bytes)
C:\autoexec.bat .exe (1963131 bytes)
C:\System Volume Information .exe (1963131 bytes)
C:\marker .exe (1963131 bytes)
%Program Files% .exe (1963131 bytes)
C:\pagefile.sys .exe (1963131 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Mirap (0 bytes)
C:\Miraq (0 bytes)
C:\Mirao (0 bytes)
C:\Mirah (0 bytes)
C:\Miraj (0 bytes)
C:\Mirad (0 bytes)
C:\Miraf (0 bytes)
C:\Mirag (0 bytes)
C:\Miraa (0 bytes)
C:\Mirac (0 bytes)

The process %original file name%.exe:1944 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\ProgramData\bnjdsh.exe (1019423 bytes)
C:\ProgramData\Saaaalamm\Mira.h (960208 bytes)

Registry activity

The process bnjdsh.exe:1636 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "C:\ProgramData\bnjdsh.exe"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: Mira Malware
Product Version: 1.0.0.155
Legal Copyright: Microsoft Corporation
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.155
File Description: Mira Malware
Comments:
Language: Language Neutral

PE Sections

Dropped from:

37b1f42ba0500fcfb9538638f934edf3

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):

.text

`.data

.rdata

@.bss

.idata

C:\ProgramData\bnjdsh.exe

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Operating System

%H:%M:%S

%m/%d/%y

-0123456789

%s:%u: failed assertion `%s'

RegCloseKey

RegOpenKeyA

ADVAPI32.DLL

KERNEL32.dll

msvcrt.dll

SHELL32.DLL

WMIADAP.EXE_2428:

.text

`.data

.rsrc

@.reloc

ADVAPI32.dll

ntdll.DLL

KERNEL32.dll

USER32.dll

msvcrt.dll

wbemcomn.dll

OLEAUT32.dll

ole32.dll

loadperf.dll

`.bik

PSSSSSSh

WMIADAP.exe

?CloseSubKey@CRegistry@@AAEXXZ

?CreateOpen@CRegistry@@QAEJPAUHKEY__@@PBGPAGKKPAU_SECURITY_ATTRIBUTES@@PAK@Z

?DeleteCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBG@Z

?DeleteCurrentKeyValue@CRegistry@@QAEKPBG@Z

?DeleteKey@CRegistry@@QAEJPAVCHString@@@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGPAEPAK@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPBGPAEPAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHStringArray@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHStringArray@@@Z

?GetCurrentRawKeyValue@CRegistry@@AAEKPAUHKEY__@@PBGPAXPAK3@Z

?GetCurrentRawSubKeyValue@CRegistry@@AAEKPBGPAXPAK2@Z

?GetCurrentSubKeyCount@CRegistry@@QAEKXZ

?GetCurrentSubKeyName@CRegistry@@QAEKAAVCHString@@@Z

?GetCurrentSubKeyPath@CRegistry@@QAEKAAVCHString@@@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGAAK@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGPAXPAK@Z

?GetLongestSubKeySize@CRegistry@@QAEKXZ

?GethKey@CRegistry@@QAEPAUHKEY__@@XZ

?LocateKeyByNameOrValueName@CRegistrySearch@@QAEHPAUHKEY__@@PBG1PAPBGKAAVCHString@@3@Z

?NextSubKey@CRegistry@@QAEKXZ

?Open@CRegistry@@QAEJPAUHKEY__@@PBGK@Z

?OpenAndEnumerateSubKeys@CRegistry@@QAEJPAUHKEY__@@PBGK@Z

?OpenLocalMachineKeyAndReadValue@CRegistry@@QAEJPBG0AAVCHString@@@Z

?OpenSubKey@CRegistry@@AAEKXZ

?RewindSubKeys@CRegistry@@QAEXXZ

?SearchAndBuildList@CRegistrySearch@@QAEHVCHString@@AAVCHPtrArray@@00HPAUHKEY__@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAK@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHStringArray@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAK@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHStringArray@@@Z

?SetCurrentKeyValueExpand@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?myRegCreateKeyEx@CRegistry@@AAEJPAUHKEY__@@PBGKPAGKKQAU_SECURITY_ATTRIBUTES@@PAPAU2@PAK@Z

?myRegDeleteKey@CRegistry@@AAEJPAUHKEY__@@PBG@Z

?myRegDeleteValue@CRegistry@@AAEJPAUHKEY__@@PBG@Z

?myRegEnumKey@CRegistry@@AAEJPAUHKEY__@@KPAGK@Z

?myRegEnumValue@CRegistry@@AAEJPAUHKEY__@@KPAGPAK22PAE2@Z

?myRegOpenKeyEx@CRegistry@@AAEJPAUHKEY__@@PBGKKPAPAU2@@Z

?myRegQueryInfoKey@CRegistry@@AAEJPAUHKEY__@@PAGPAK22222222PAU_FILETIME@@@Z

?myRegQueryValueEx@CRegistry@@AAEJPAUHKEY__@@PBGPAK2PAE2@Z

?myRegSetValueEx@CRegistry@@AAEJPAUHKEY__@@PBGKKPBEK@Z

QSSh0

Invalid parameter passed to C runtime function.

ntdll.dll

RegCloseKey

RegOpenKeyExW

RegCreateKeyExW

RegEnumKeyW

RegDeleteKeyW

RegQueryInfoKeyW

_amsg_exit

_acmdln

?Report@CEventLog@@QAEHGKVCInsertionString@@000000000@Z

WMIADAP.pdb

<assemblyIdentity version="1.0.0.0"

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

5m6z6

%s_x

%s_x_

Global\WMI_SysEvent_Semaphore_%d

WinMSGWMIADAP

\\.\root\cimv2

WMIADAP Msg window

\\.\root\wmi

PSAPI.DLL

x=%s

Describes all the counters supported via WMI Hi-Performance providers

_new.ini

xx %s%s.ini

xx %s

\\.\ROOT\cimv2:__ClassProviderRegistration.provider="\\\\.\\root\\cimv2:__Win32Provider.Name=\"WmiPerfClass\""

WmiApRes.dll

%s\%s

6.1.7600.16385 (win7_rtm.090713-1255)

wmicookr.dll

Windows

Operating System

6.1.7600.16385

taskhost.exe_2692:

.text

`.data

.rsrc

@.reloc

msvcrt.dll

ole32.dll

OLEAUT32.dll

KERNEL32.dll

NTDLL.DLL

API-MS-Win-Core-LocalRegistry-L1-1-0.dll

API-MS-Win-Core-ProcessThreads-L1-1-0.dll

API-MS-Win-Security-Base-L1-1-0.dll

USER32.dll

RPCRT4.dll

d:\w7rtm\admin\wmi\jobs\ubpmlibs\comtaskhost\comtaskapi.cpp

The likely culprit task is stuck on the same stack with %S.

d:\w7rtm\admin\wmi\jobs\ubpmlibs\closewinapp\closewinapp.cpp

Invalid parameter passed to C runtime function.

taskhost.pdb

_wcmdln

_amsg_exit

InitOnceExecuteOnce

SetProcessShutdownParameters

MsgWaitForMultipleObjects

EnumThreadWindows

EnumWindows

ntdll.dll

GetProcessHeap

CATCH_KNOWN: %S ==> hr=0x%x [%S(),%d,%S]

bStartComTask() --> h=0x%x ret=%d

StopComTask(0x%x) --> ret=%d

SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule

ComTaskMgrWnd(0x%x)::ShutdownTasksWorker()

ComTaskMgrWnd(0x%x)::Shutdown(%ws)

gCleanupSet()::Remove(0x%x)

ComTaskHost(0x%x)::WaitForTaskStartCompletion() --> 0x%x

ComTaskHost(0x%x)::WaitForTaskStartCompletion()

ComTaskHost(0x%x)::%ws() --> ReleaseLifetimeRef(this)

ComTaskHost(0x%x)::StopTaskWorker() --> 0x%x

ComTaskHost(0x%x)::StopTaskWorker()

ComTaskHost(0x%x)::Shutdown()

ComTaskHost(0x%x)::HandleReportingState(0x%x) --> 0x%x

ComTaskHost(0x%x): UbpmReportTaskStatus(0x%x) --> 0x%x

ComTaskHost(0x%x)::StartTaskWorker() --> 0x%x

ITaskHandler::Start(0x%x,"%ws") --> 0x%x

ComTaskHost(0x%x)::StartTaskWorker() --> ITaskHandler(0x%x)::Start(0x%x,"%ws")

ComTaskHost(0x%x)::StartTaskWorker()

ComTaskHost(0x%x)::Stop --> 0x%x

ComTaskHost(0x%x)::Stop - CreateThread failed with 0x%x

StartTaskThread(0x%x) bailed out because of shutdown

ComTaskHost(0x%x)::~ComTaskHost()

ComTaskHost(0x%x)::Start --> 0x%x

ComTaskHost(0x%x)::TaskCompleted() skipped because of shutdown

ComTaskHost(0x%x)::TaskCompleted(0x%x)

ComTaskHost(0x%x)::AddRef -> m_cRef = %d

ComTaskHost(0x%x)::Release -> m_cRef = %d

WinAppTerminator: found wnd 0x%x for pid %d.

WinAppTerminator: forced WM_CLOSE sent to top wnd 0x%x.

WinAppTerminator: EnumThreadWindows failed err=%d.

Host Process for Windows Tasks

6.1.7601.17514 (win7sp1_rtm.101119-1850)

taskhost.exe

Windows

Operating System

6.1.7601.17514

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):
   

   bnjdsh.exe:1636
   %original file name%.exe:1944

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

   C:\original .exe (1963131 bytes)
   C:\config.sys .exe (1963131 bytes)
   C:\%original file name%.exe .exe (1963131 bytes)
   C:\bootmgr .exe (1963131 bytes)
   C:\Boot .exe (1963131 bytes)
   C:\Windows .exe (1963131 bytes)
   C:\ProgramData .exe (1963131 bytes)
   C:\$Recycle.Bin .exe (1963131 bytes)
   C:\BOOTSECT.BAK .exe (1963131 bytes)
   %Documents and Settings% .exe (1963131 bytes)
   C:\totalcmd .exe (1963131 bytes)
   C:\Users .exe (1963131 bytes)
   C:\XELDZ .exe (1963131 bytes)
   C:\autoexec.bat .exe (1963131 bytes)
   C:\System Volume Information .exe (1963131 bytes)
   C:\marker .exe (1963131 bytes)
   %Program Files% .exe (1963131 bytes)
   C:\pagefile.sys .exe (1963131 bytes)
   C:\ProgramData\bnjdsh.exe (1019423 bytes)
   C:\ProgramData\Saaaalamm\Mira.h (960208 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Microsoft® Windows® Operating System" = "C:\ProgramData\bnjdsh.exe"

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