crimsonrat | e60ad9543b873569432bc05cbfc8dd0f72a618f26eb256f15048b820e151846e

Analysis

max time kernel
149s
max time network
151s
platform
windows10_x64
resource
win10-en-20211208
submitted
21/01/2022, 22:57

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General

Target

MoI Operation/MoI Operation.exe
Size

309KB
MD5

2a2088cc646b984cb3d75d18c8708eb5
SHA1

20ceef8731d905794c8d7a14f4ecf9fb5aa29e28
SHA256

5a449782c6d286a5af7fd5cbab5d5d46dd4dd153cbc46e4aeae0ea54f2785980
SHA512

cc23d711d756ca322786d0327b017af5e457b2ac144a03cdff9456164bd58e5dfa0b5ac6df02c9a3d7036cd82a29278eed055357e7080797673aaed95886de1d

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000500000001ab61-119.dat	family_crimsonrat
behavioral2/files/0x000500000001ab61-120.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
1184	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 2432 wrote to memory of 1184	2432	MoI Operation.exe	69
PID 2432 wrote to memory of 1184	2432	MoI Operation.exe	69

C:\Users\Admin\AppData\Local\Temp\MoI Operation\MoI Operation.exe
"C:\Users\Admin\AppData\Local\Temp\MoI Operation\MoI Operation.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2432
- C:\ProgramData\Ladhnara\nirtbivaes.exe
  "C:\ProgramData\Ladhnara\nirtbivaes.exe"
  2⤵
  - Executes dropped EXE
  PID:1184

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/1184-121-0x00000256BEE80000-0x00000256BF842000-memory.dmp

Filesize
9.8MB

Download
memory/1184-122-0x00000256DACC0000-0x00000256DACC2000-memory.dmp

Filesize
8KB

Download
memory/2432-118-0x0000000000D70000-0x0000000000D72000-memory.dmp

Filesize
8KB

Download