ramnit | 0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8

General

Target

0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
Size

291KB
MD5

37c158bb1072a99377e004f1bb85a130
SHA1

50f35924e9318a48dadad4db192ab38ed18602e8
SHA256

0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8
SHA512

d7a1648e2bcce02bd7c553d54fe2b8a4a8bba72e2bb01a8db7a0fd0848e87bfccee7a2b1355521e9a479ad744ae2e489b2fa471b796e660dfcef11b37fb3c784
SSDEEP

6144:ShoO42fJNxCikdQ9lPzRv2ml/fU1HDNpfkvHYTcPwwVAVUamf+:QfJNxx9lPlv2ml/fUJuHlhGUam2

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
4512	regsvr32Srv.exe
4788	DesktopLayer.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000300000000071d-134.dat	upx
behavioral2/files/0x000300000000071d-135.dat	upx
behavioral2/files/0x000400000000071f-137.dat	upx
behavioral2/memory/4512-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000400000000071f-139.dat	upx
behavioral2/memory/4788-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px6287.tmp	regsvr32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30997923"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375798141"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30997923"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BD0312F1-6996-11ED-89AC-D2A4FF929712} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2594347506"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2594347506"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\ = "Intel® Hardware VC-1 Decoder MFT"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\MFTFlags = "36"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\ = "Intel® Hardware VC-1 Decoder MFT"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\OutputTypes = 7669647300001000800000aa00389b714e5631326139ae42ba67ff47ccc13eed7669647300001000800000aa00389b714e56313200001000800000aa00389b717669647300001000800000aa00389b714959555600001000800000aa00389b71	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\InputTypes = 7669647300001000800000aa00389b715188e559b2021c43a37fe55d98eb09727669647300001000800000aa00389b71f1047fe7cfd2d342bd8fe7fe6319c26a7669647300001000800000aa00389b715756433100001000800000aa00389b71	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\Attributes = 41464d490100000015cba788077b344a9128e64c6703c4d313000000000000000700000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories\d6c02d4b-6833-45b4-971a-05a4b04bab91\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\MediaFoundation\Transforms\Categories\d6c02d4b-6833-45b4-971a-05a4b04bab91	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe
4788	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4732	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4732	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4732	iexplore.exe
4732	iexplore.exe
4652	IEXPLORE.EXE
4652	IEXPLORE.EXE
4652	IEXPLORE.EXE
4652	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 968	2568	regsvr32.exe	82
PID 2568 wrote to memory of 968	2568	regsvr32.exe	82
PID 2568 wrote to memory of 968	2568	regsvr32.exe	82
PID 968 wrote to memory of 4512	968	regsvr32.exe	83
PID 968 wrote to memory of 4512	968	regsvr32.exe	83
PID 968 wrote to memory of 4512	968	regsvr32.exe	83
PID 4512 wrote to memory of 4788	4512	regsvr32Srv.exe	84
PID 4512 wrote to memory of 4788	4512	regsvr32Srv.exe	84
PID 4512 wrote to memory of 4788	4512	regsvr32Srv.exe	84
PID 4788 wrote to memory of 4732	4788	DesktopLayer.exe	85
PID 4788 wrote to memory of 4732	4788	DesktopLayer.exe	85
PID 4732 wrote to memory of 4652	4732	iexplore.exe	86
PID 4732 wrote to memory of 4652	4732	iexplore.exe	86
PID 4732 wrote to memory of 4652	4732	iexplore.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
  2⤵
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:968
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:4512
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4788
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4732
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4732 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4512-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4788-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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