crimsonrat | f26998a89d011af5860fa5c9cccf3ee09c81b14156824bdbee21e3229c7cba4b

Analysis

max time kernel
117s
max time network
130s
platform
windows7_x64
resource
win7-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
behavioral1/files/0x0006000000013034-58.dat	family_crimsonrat
behavioral1/files/0x0006000000013034-59.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
1016	nirtbivaes.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Ladhnara\nirtbivaes.exe	Personal Data.exe
File opened for modification	C:\PROGRA~3\Ladhnara\nirtbivaes.exe	Personal Data.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 3 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1016	1624	Personal Data.exe	27
PID 1624 wrote to memory of 1016	1624	Personal Data.exe	27
PID 1624 wrote to memory of 1016	1624	Personal Data.exe	27

C:\Users\Admin\AppData\Local\Temp\Personal Data\Personal Data.exe
"C:\Users\Admin\AppData\Local\Temp\Personal Data\Personal Data.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1624
- C:\ProgramData\Ladhnara\nirtbivaes.exe
  "C:\ProgramData\Ladhnara\nirtbivaes.exe"
  2⤵
  - Executes dropped EXE
  PID:1016

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/1016-60-0x000007FEF1F00000-0x000007FEF2F96000-memory.dmp

Filesize
16.6MB

Download
memory/1016-61-0x00000000028F0000-0x00000000028F2000-memory.dmp

Filesize
8KB

Download
memory/1016-62-0x00000000028F6000-0x0000000002915000-memory.dmp

Filesize
124KB

Download
memory/1624-55-0x0000000001FF0000-0x0000000001FF2000-memory.dmp

Filesize
8KB

Download
memory/1624-56-0x000007FEF1F00000-0x000007FEF2F96000-memory.dmp

Filesize
16.6MB

Download
memory/1624-57-0x0000000001FF6000-0x0000000002015000-memory.dmp

Filesize
124KB

Download