ramnit | 46f6f3d642c24915a198afc854c75b61fdd502af2a8719224efbb6eb18fdb335

Analysis

max time kernel
126s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 10:47

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General

Target

6889adc5ad025fd7d87df2471b0af649.dll
Size

184KB
MD5

6889adc5ad025fd7d87df2471b0af649
SHA1

cdd5b28d6e11a467648a723dc493384ee28d2186
SHA256

46f6f3d642c24915a198afc854c75b61fdd502af2a8719224efbb6eb18fdb335
SHA512

6e9938cf27bc21be4b30e2339545ef715cb4091d4d60ea2f033e01b552294cd8f6e8289391f81f0c70bad533d0fa6dcf5bae3631ff6fca9f8650cdb951b5fc40
SSDEEP

3072:EwHlOS2xtVutM0DGHZpvs7VBUrmVv+uhulMCs2haEp:EwFItpzHTY6rmVv9UGHy

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 1 IoCs

pid	Process
1452	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
1452	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1452-5-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2860	1100	WerFault.exe	16
4492	1452	WerFault.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 1100	2536	rundll32.exe	16
PID 2536 wrote to memory of 1100	2536	rundll32.exe	16
PID 2536 wrote to memory of 1100	2536	rundll32.exe	16
PID 1100 wrote to memory of 1452	1100	rundll32.exe	26
PID 1100 wrote to memory of 1452	1100	rundll32.exe	26
PID 1100 wrote to memory of 1452	1100	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6889adc5ad025fd7d87df2471b0af649.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6889adc5ad025fd7d87df2471b0af649.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 620
    3⤵
    - Program crash
    PID:2860
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 480
1⤵
- Program crash
PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1452 -ip 1452
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1100 -ip 1100
1⤵
PID:1968

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1100-12-0x0000000010000000-0x000000001002F000-memory.dmp

Filesize
188KB

Download
memory/1100-1-0x0000000010000000-0x000000001002F000-memory.dmp

Filesize
188KB

Download
memory/1452-11-0x00000000778C2000-0x00000000778C3000-memory.dmp

Filesize
4KB

Download
memory/1452-10-0x00000000778C2000-0x00000000778C4000-memory.dmp

Filesize
8KB

Download
memory/1452-7-0x0000000002170000-0x000000000219A000-memory.dmp

Filesize
168KB

Download
memory/1452-5-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download