ramnit | 86fef9a0b3ebbc4c1ec52112056e6e21e79b6447bf28a8b1e13d2783fd120f9f

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 22:57

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General

Target
86fef9a0b3ebbc4c1ec52112056e6e21e79b6447bf28a8b1e13d2783fd120f9f.dll
Size 348KB
Sample240329-2xrxdsbf7y
SHA256 86fef9a0b3ebbc4c1ec52112056e6e21e79b6447bf28a8b1e13d2783fd120f9f
MD5 aef998d9264fb3854bc677b69ea2c036
SHA1 3eb134a014c0bcc9edbfda27103b4dff13dd34ec
SHA512 80a9d44c5989c53b43f5c35a033f6e4a4795c5a40336ffdc4e7759bb0b775f834e6bcd8186d6d13dcdf78c501e9fe0dd23ff1ecd84651c33a79d07b9419b3494
SSDEEP 3072:cfRBoFWlyQNZhFGVl4LSz1RNeyOb2EqMGzs4VlS0q0Ebs:cpdHNr4Vl4LSz1RZOyEqMj4VlS0q0ks
MD5 SHA1 SHA512 SSDEEP

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

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral2/memory/4752-6-0x0000000000400000-0x0000000000432000-memory.dmp	UPX
behavioral2/memory/4752-7-0x00000000006E0000-0x0000000000712000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
4752	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
4752	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4752-6-0x0000000000400000-0x0000000000432000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3472	4752	WerFault.exe	89

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 4944	3516	rundll32.exe	87
PID 3516 wrote to memory of 4944	3516	rundll32.exe	87
PID 3516 wrote to memory of 4944	3516	rundll32.exe	87
PID 4944 wrote to memory of 4752	4944	rundll32.exe	89
PID 4944 wrote to memory of 4752	4944	rundll32.exe	89
PID 4944 wrote to memory of 4752	4944	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\86fef9a0b3ebbc4c1ec52112056e6e21e79b6447bf28a8b1e13d2783fd120f9f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\86fef9a0b3ebbc4c1ec52112056e6e21e79b6447bf28a8b1e13d2783fd120f9f.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4944
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4752
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 484
      4⤵
      Program crash
      PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4752 -ip 4752
1⤵
PID:1404

Network

MITRE ATT&CK Matrix

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Downloads

~TM4594.tmp

Path C:\Users\Admin\AppData\Local\Temp\~TM4594.tmp
Size 1.6MB
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
SSDEEP 24576:qhYK3o0FvOh/e8AuDq8TJqbEPVVdqi90gvuPGO12HoIGTufqN8:2XFvO5egq8TMbEL59JCKSN
MD5 SHA1 SHA512 SSDEEP

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rundll32mgr.exe

Path C:\Windows\SysWOW64\rundll32mgr.exe
Size 157KB
SHA256 2aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9
MD5 2ad7467eeceedd64b8bd4f6e04c3cd49
SHA1 d6c5d9878dc49ae9b531d61283609e207154a921
SHA512 7a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a
SSDEEP 1536:VIZZnAEjEIZvumULmj4wrraK5dZ4Ltta9Km/ec3DtAL6bmZ4bXSjrAE+fySPoqRI:GnnAQVG/LytaKItS/fiLKS+f5Aq7i
MD5 SHA1 SHA512 SSDEEP

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memory/4752-4-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/4752-6-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/4752-7-0x00000000006E0000-0x0000000000712000-memory.dmp

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memory/4752-11-0x0000000077992000-0x0000000077993000-memory.dmp

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memory/4752-12-0x0000000077992000-0x0000000077994000-memory.dmp

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memory/4944-1-0x0000000010000000-0x0000000010057000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads