crimsonrat | f26998a89d011af5860fa5c9cccf3ee09c81b14156824bdbee21e3229c7cba4b

Analysis

max time kernel
120s
max time network
130s
platform
windows10_x64
resource
win10-en-20211208
submitted
21-01-2022 22:52

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General

Target

Personal Data/Personal Data.exe
Size

314KB
MD5

9057a26d250fa33e7366e7cb8480cf51
SHA1

f01e6154c079cf277c9c6f3c42a5c52e4e6a83de
SHA256

68253af6013d22553f3e87b8fd59dfade5c7f120b07ea679b041dcdcb845885a
SHA512

690dfa2f640dbc7c93933f5c8156234e364a67c5146b757dcd3ae0e3c3539a11a32e2eaf2ecd880c7edb17b9938ec5ba0c52d76ce339958e3b3ee5c966b1ba40

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000500000001ab2c-120.dat	family_crimsonrat
behavioral2/files/0x000500000001ab2c-121.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
820	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 368 wrote to memory of 820	368	Personal Data.exe	69
PID 368 wrote to memory of 820	368	Personal Data.exe	69

C:\Users\Admin\AppData\Local\Temp\Personal Data\Personal Data.exe
"C:\Users\Admin\AppData\Local\Temp\Personal Data\Personal Data.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:368
- C:\ProgramData\Ladhnara\nirtbivaes.exe
  "C:\ProgramData\Ladhnara\nirtbivaes.exe"
  2⤵
  - Executes dropped EXE
  PID:820

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/368-118-0x00000000026A0000-0x00000000026A2000-memory.dmp

Filesize
8KB

Download
memory/820-122-0x00000288D3C80000-0x00000288D4642000-memory.dmp

Filesize
9.8MB

Download
memory/820-123-0x00000288EEB60000-0x00000288EEB62000-memory.dmp

Filesize
8KB

Download