ramnit | a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda

General

Target

a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
Size

489KB
MD5

036e49e0290e58f9fda1963849abb550
SHA1

a76723a0d5d24aec7b263eb8f708e8b3c7ba682b
SHA256

a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda
SHA512

a120ffcdb13ecc9d59ea553a0d568a09dc3b2d4c39d7dd7441469b5025127adefaf57253ac72f1d1da6d8b34a61d6c37ebc4bfa44f790d8b2281cbe7bb72a001
SSDEEP

12288:0mMxGXFTqVw4zS5MU49/3Y89DqzpMh0BFIQD:HXUw4zS5MU4O81ApMh0zrD

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
1972	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
1680	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000022e68-134.dat	upx
behavioral2/files/0x0007000000022e68-135.dat	upx
behavioral2/files/0x0008000000022e6c-138.dat	upx
behavioral2/files/0x0008000000022e6c-140.dat	upx
behavioral2/memory/1972-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1680-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px737F.tmp	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Modifies Internet Explorer settings 1 TTPs 18 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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
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
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AA90E019-5E59-11ED-89AC-5ECC372795C7} = "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 (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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\DomainSuggestion\NextUpdateDate = "374562464"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe
1680	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1428	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1428	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4808	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
1428	iexplore.exe
1428	iexplore.exe
4924	IEXPLORE.EXE
4924	IEXPLORE.EXE
4924	IEXPLORE.EXE
4924	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 1972	4808	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	81
PID 4808 wrote to memory of 1972	4808	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	81
PID 4808 wrote to memory of 1972	4808	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	81
PID 1972 wrote to memory of 1680	1972	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	82
PID 1972 wrote to memory of 1680	1972	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	82
PID 1972 wrote to memory of 1680	1972	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	82
PID 1680 wrote to memory of 1428	1680	DesktopLayer.exe	83
PID 1680 wrote to memory of 1428	1680	DesktopLayer.exe	83
PID 1428 wrote to memory of 4924	1428	iexplore.exe	84
PID 1428 wrote to memory of 4924	1428	iexplore.exe	84
PID 1428 wrote to memory of 4924	1428	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
"C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
  C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1680
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1428
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1428 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4924

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\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1680-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1972-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4808-132-0x0000000000350000-0x00000000003D1000-memory.dmp

Filesize
516KB

Download
memory/4808-136-0x0000000000350000-0x00000000003D1000-memory.dmp

Filesize
516KB

Download

Analysis

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