crimsonrat | dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e

Analysis

max time kernel
140s
max time network
156s
platform
windows10_x64
resource
win10-en-20211208
submitted
21-01-2022 23:02

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General

Target

dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe
Size

387KB
MD5

2a82b0c4a6d1e0b685e15ee159324c28
SHA1

1dd115a3b1e39dca45e07bf44d76bd3f83e624f5
SHA256

dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e
SHA512

e64676c84a3a7ff8c6a9129a5c9c8fe40ac0287f6c41fe94b3b609b01917d234a032bb19a0be737eabd968714dba38715a4e8016da6ba968f454a0969a4e0e37

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ab1b-117.dat	family_crimsonrat
behavioral2/files/0x000700000001ab1b-118.dat	family_crimsonrat

CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
rat crimsonrat

Executes dropped EXE 1 IoCs

pid	Process
652	nirtbivaes.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 652	2452	dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe	69
PID 2452 wrote to memory of 652	2452	dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe	69

C:\Users\Admin\AppData\Local\Temp\dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe
"C:\Users\Admin\AppData\Local\Temp\dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2452
- C:\ProgramData\Ladhnara\nirtbivaes.exe
  "C:\ProgramData\Ladhnara\nirtbivaes.exe"
  2⤵
  - Executes dropped EXE
  PID:652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/652-119-0x000001461CDD0000-0x000001461D792000-memory.dmp

Filesize
9.8MB

Download
memory/652-120-0x0000014637F10000-0x0000014637F12000-memory.dmp

Filesize
8KB

Download
memory/2452-115-0x000001CDE7660000-0x000001CDE76CA000-memory.dmp

Filesize
424KB

Download
memory/2452-116-0x000001CDE9BA0000-0x000001CDE9BA2000-memory.dmp

Filesize
8KB

Download