ramnit | c1a5c8b7d7ebff36877d7192908eb4b667b3b5330f54bdad1e4f4366552d6bc9

Analysis

max time kernel
96s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 01:23

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General

Target

c1a5c8b7d7ebff36877d7192908eb4b667b3b5330f54bdad1e4f4366552d6bc9N.dll
Size

228KB
MD5

f2d48bcfaa8c9b1a97a4d1751cf5f500
SHA1

c9682201ed99234864e3ded872dab1a585b41c8e
SHA256

c1a5c8b7d7ebff36877d7192908eb4b667b3b5330f54bdad1e4f4366552d6bc9
SHA512

1d0c0d124d08ad154ba4555bbe6e70c0bd4178eb4966d2b16bc6e71663b08cbcc00b2bad293154d0c523b0c0cb85e9d9fb6396bec12ad32b33b9aaf471964075
SSDEEP

3072:8Ahom4A7HDF85HQHaUgquHBMllyF0VN4GB1qL9VevNypIqNKa00uGduCGuEUrc:dHF7HDF85HQHaj0yMNf+Zwrqx005dsUg

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

Executes dropped EXE 1 IoCs

pid	Process
1304	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
1304	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1304-9-0x0000000000400000-0x000000000046B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4372	4524	WerFault.exe	82
1876	1304	WerFault.exe	83

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 4524	4292	rundll32.exe	82
PID 4292 wrote to memory of 4524	4292	rundll32.exe	82
PID 4292 wrote to memory of 4524	4292	rundll32.exe	82
PID 4524 wrote to memory of 1304	4524	rundll32.exe	83
PID 4524 wrote to memory of 1304	4524	rundll32.exe	83
PID 4524 wrote to memory of 1304	4524	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1a5c8b7d7ebff36877d7192908eb4b667b3b5330f54bdad1e4f4366552d6bc9N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1a5c8b7d7ebff36877d7192908eb4b667b3b5330f54bdad1e4f4366552d6bc9N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4524
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1304
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 10184
      4⤵
      Program crash
      PID:1876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 608
    3⤵
    - Program crash
    PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4524 -ip 4524
1⤵
PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1304 -ip 1304
1⤵
PID:4004

Network

MITRE ATT&CK Enterprise v15

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\~TM98C5.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
169KB

MD5
335f0aeb047ac7782090828b5d4fa10e

SHA1
73355b1c843bec7be94b0a39efb5ff3b1b4ee547

SHA256
6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

SHA512
635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

Download Submit
memory/1304-9-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/1304-5-0x00000000021D0000-0x000000000223B000-memory.dmp

Filesize
428KB

Download
memory/1304-12-0x00000000021D0000-0x000000000223B000-memory.dmp

Filesize
428KB

Download
memory/4524-1-0x0000000010000000-0x0000000010039000-memory.dmp

Filesize
228KB

Download
memory/4524-10-0x0000000010000000-0x0000000010039000-memory.dmp

Filesize
228KB

Download