crimsonrat | bfcb56e41871cf6668c2699c3b0697913d0780bc0195a51ae036db7b991797d9

Analysis

max time kernel
148s
max time network
150s
platform
windows10_x64
resource
win10-en-20211208
submitted
21-01-2022 23:13

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General

Target

khushi pics all/khushi.exe
Size

985KB
MD5

3cb7f596cbaa622e8b505335722ab558
SHA1

617df380f49c4017315f503c5947c88d80b4ab21
SHA256

1fdb5dd192e813f337adc21dfe4a31e1de10bd2bbb5b58ca51a6836b7e108953
SHA512

b3879f19e65ec0de247c6f835405e94362697fed09669edca22ba491e1c1cd7a5e82487c26324e43db00f9c4593f32efdd81549061cb46ae9d6df61b9d6ec9a6

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000200000001ab4e-121.dat	family_crimsonrat
behavioral2/files/0x000200000001ab4e-122.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
1628	widthacan.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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	widthacan.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3792 wrote to memory of 1628	3792	khushi.exe	69
PID 3792 wrote to memory of 1628	3792	khushi.exe	69

C:\Users\Admin\AppData\Local\Temp\khushi pics all\khushi.exe
"C:\Users\Admin\AppData\Local\Temp\khushi pics all\khushi.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3792
- C:\ProgramData\Btharmis\widthacan.exe
  "C:\ProgramData\Btharmis\widthacan.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1628

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/1628-123-0x00000214ECC30000-0x00000214ED5DA000-memory.dmp

Filesize
9.7MB

Download
memory/1628-124-0x00000214F10E0000-0x00000214F10E2000-memory.dmp

Filesize
8KB

Download
memory/3792-118-0x00000000032B0000-0x00000000032B2000-memory.dmp

Filesize
8KB

Download
memory/3792-120-0x00000000032B2000-0x00000000032B4000-memory.dmp

Filesize
8KB

Download