ramnit | 0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0

General

Target

0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll
Size

667KB
MD5

6c4d10ccaa5bdbb5a898b6b74e870090
SHA1

22d7535b5ba1d17da8f4f8d7a3a72b4c740c31c3
SHA256

0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0
SHA512

ceeef46f68cae512a7a381b7716b29e9036c5d5a967d4a2b886d98d923bb0ceb8553a86bad7bf599ef23ce74ee00094b9f4639abac42437820e797958539d67e
SSDEEP

12288:/scuWja/7ff/RwkK04Vve+u5spKZQdyxMfgjdVQCa:EOja/7ff/RVKReOoQ9

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
240	regsvr32Srv.exe
1708	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx
behavioral1/files/0x000c0000000054a8-61.dat	upx
behavioral1/files/0x00090000000126a6-62.dat	upx
behavioral1/memory/240-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000126a6-64.dat	upx
behavioral1/files/0x00090000000126a6-67.dat	upx
behavioral1/memory/1708-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1628	regsvr32.exe
240	regsvr32Srv.exe

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\px4B34.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 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{68344401-43EC-11ED-8413-C22E595EE768} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371656814"	iexplore.exe

Modifies registry class 26 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\ = "dia 2.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BCE36434-2C24-499E-BF49-8BD99B0EEB68}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BCE36434-2C24-499E-BF49-8BD99B0EEB68}\ = "Debug Information Accessor"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1FBD5EC4-B8E4-4D94-9EFE-7CCAF9132C98}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37DFDBCC-40A5-4F4A-8523-123C746D38F0}\ = "Generic StackWalker"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1FBD5EC4-B8E4-4D94-9EFE-7CCAF9132C98}\ = "Debug Information Accessor w/o Global Memory Usage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37DFDBCC-40A5-4F4A-8523-123C746D38F0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37DFDBCC-40A5-4F4A-8523-123C746D38F0}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BCE36434-2C24-499E-BF49-8BD99B0EEB68}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BCE36434-2C24-499E-BF49-8BD99B0EEB68}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1FBD5EC4-B8E4-4D94-9EFE-7CCAF9132C98}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1FBD5EC4-B8E4-4D94-9EFE-7CCAF9132C98}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37DFDBCC-40A5-4F4A-8523-123C746D38F0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BCE36434-2C24-499E-BF49-8BD99B0EEB68}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1FBD5EC4-B8E4-4D94-9EFE-7CCAF9132C98}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37DFDBCC-40A5-4F4A-8523-123C746D38F0}\InprocServer32	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1708	DesktopLayer.exe
1708	DesktopLayer.exe
1708	DesktopLayer.exe
1708	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1612	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1612	iexplore.exe
1612	iexplore.exe
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1232 wrote to memory of 1628	1232	regsvr32.exe	28
PID 1628 wrote to memory of 240	1628	regsvr32.exe	29
PID 1628 wrote to memory of 240	1628	regsvr32.exe	29
PID 1628 wrote to memory of 240	1628	regsvr32.exe	29
PID 1628 wrote to memory of 240	1628	regsvr32.exe	29
PID 240 wrote to memory of 1708	240	regsvr32Srv.exe	30
PID 240 wrote to memory of 1708	240	regsvr32Srv.exe	30
PID 240 wrote to memory of 1708	240	regsvr32Srv.exe	30
PID 240 wrote to memory of 1708	240	regsvr32Srv.exe	30
PID 1708 wrote to memory of 1612	1708	DesktopLayer.exe	31
PID 1708 wrote to memory of 1612	1708	DesktopLayer.exe	31
PID 1708 wrote to memory of 1612	1708	DesktopLayer.exe	31
PID 1708 wrote to memory of 1612	1708	DesktopLayer.exe	31
PID 1612 wrote to memory of 1700	1612	iexplore.exe	33
PID 1612 wrote to memory of 1700	1612	iexplore.exe	33
PID 1612 wrote to memory of 1700	1612	iexplore.exe	33
PID 1612 wrote to memory of 1700	1612	iexplore.exe	33

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\0fbc244c6cd6dfbd5c4274e33915d3081fac7876b6a4eece366bbfdb9c6f1ff0.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:240
  - - 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:1708
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1612
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1612 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1700

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:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\93H0IV3C.txt

Filesize
603B

MD5
5b602a1f88ecec0ed394fece772d021b

SHA1
185727b4eb5d32a9542a7b925ce6ad30476c480d

SHA256
f7e788e224d058c6bd84f93982555c6048013a4e2b47bb17928d3f4733fb1a3f

SHA512
c6587eaad04b2f6cabd2705db99d48ec1f7a263d6157588d20f3f8f9c02b2b360be212162311bcef9b9b0ad78723d8b0b9e4c564ee3deeecb2bea5e52bb509c1

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/240-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1232-54-0x000007FEFBB81000-0x000007FEFBB83000-memory.dmp

Filesize
8KB

Download
memory/1628-56-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1708-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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