ramnit | b4d0d4f8ab0d0c620f46480511dbff585065f1629400b44b9218dec3d8212201

Analysis

max time kernel
106s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2025, 20:57

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General

Target

JaffaCakes118_b8e474b91289bf1cedbce42586ee24e5.dll
Size

412KB
MD5

b8e474b91289bf1cedbce42586ee24e5
SHA1

94d98e9a958bd76fee86f4c32324b10142bbe53b
SHA256

b4d0d4f8ab0d0c620f46480511dbff585065f1629400b44b9218dec3d8212201
SHA512

886ccdef7ae14bd207dbfe1b3f03241d330712a03274055df942038f4391648210c1400d20fa7bd038b7cdb48d88175540fb68e7e1cee6e6af62310154dac588
SSDEEP

6144:sayocjqchgZZWnvpIH0G6AE3ZoPw5WxOYd8r2RO4kF+RmHK9:sayocjqWgZZu+DE3ZXmLd5k43uk

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 1 IoCs

pid	Process
6032	regsvr32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
6032	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/6032-5-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/6032-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
6140	6032	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 6064 wrote to memory of 5216	6064	regsvr32.exe	85
PID 6064 wrote to memory of 5216	6064	regsvr32.exe	85
PID 6064 wrote to memory of 5216	6064	regsvr32.exe	85
PID 5216 wrote to memory of 6032	5216	regsvr32.exe	87
PID 5216 wrote to memory of 6032	5216	regsvr32.exe	87
PID 5216 wrote to memory of 6032	5216	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8e474b91289bf1cedbce42586ee24e5.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:6064
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8e474b91289bf1cedbce42586ee24e5.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5216
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:6032
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 6032 -s 276
      4⤵
      Program crash
      PID:6140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 6032 -ip 6032
1⤵
PID:3928

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TM5C2A.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
145KB

MD5
236442845a1200d31dd50d7bc7a89960

SHA1
3a549937a35c4a9258bfcb1d99eee8cc975d22df

SHA256
574e4f1332949f2af1a520d674dcec385152a19b008202a2de7b3957233cbb52

SHA512
f212098e6fc5ccaca6b325b5830be7d2a4201ee087ed14165e2f686b1ca6e8b7e9719763f627e92d236575313d022ddfbd58b830cb9300b0e59f2fa6bfe68f18

Download Submit
memory/5216-1-0x0000000010000000-0x0000000010069000-memory.dmp

Filesize
420KB

Download
memory/6032-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/6032-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download