crimsonrat | dc31e710277eac1b125de6f4626765a2684d992147691a33964e368e5f269cba

Analysis

max time kernel
33s
max time network
42s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
25-09-2024 16:33

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General

Target

CrimsonRAT.exe
Size

84KB
MD5

b6e148ee1a2a3b460dd2a0adbf1dd39c
SHA1

ec0efbe8fd2fa5300164e9e4eded0d40da549c60
SHA256

dc31e710277eac1b125de6f4626765a2684d992147691a33964e368e5f269cba
SHA512

4b8c62ddfc7cd3e5ce1f8b5a1ba4a611ab1bfccf81d80cf2cfc831cffa1d7a4b6da0494616a53b419168bc3a324b57382d4a6186af083de6fc93d144c4503741
SSDEEP

1536:IjoAILD000jsdtP66K3uch3bCuExwwSV712fRp1Oo2IeG:IqLD000wD6VRhLbzwSv2H1beG

Score

10^/10

crimsonrat rat

Malware Config

Extracted

Family

crimsonrat

185.136.161.124

Signatures

CrimsonRAT main payload 1 IoCs

Processes:

resource	yara_rule
C:\ProgramData\Hdlharas\dlrarhsiva.exe	family_crimsonrat

CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
rat crimsonrat
Executes dropped EXE 1 IoCs

Processes:

dlrarhsiva.exe

pid process

3432 dlrarhsiva.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3432	dlrarhsiva.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

CrimsonRAT.exe

description	pid	process	target process
PID 1072 wrote to memory of 3432	1072	CrimsonRAT.exe	dlrarhsiva.exe
PID 1072 wrote to memory of 3432	1072	CrimsonRAT.exe	dlrarhsiva.exe

C:\Users\Admin\AppData\Local\Temp\CrimsonRAT.exe
"C:\Users\Admin\AppData\Local\Temp\CrimsonRAT.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1072
- C:\ProgramData\Hdlharas\dlrarhsiva.exe
  "C:\ProgramData\Hdlharas\dlrarhsiva.exe"
  2⤵
  - Executes dropped EXE
  PID:3432

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\ProgramData\Hdlharas\dlrarhsiva.exe

Filesize
9.1MB

MD5
64261d5f3b07671f15b7f10f2f78da3f

SHA1
d4f978177394024bb4d0e5b6b972a5f72f830181

SHA256
87f51b4632c5fbc351a59a234dfefef506d807f2c173aac23162b85d0d73c2ad

SHA512
3a9ff39e6bc7585b0b03f7327652e4c3b766563e8b183c25b6497e30956945add5684f1579862117e44c6bac2802601fc7c4d2a0daa1824f16c4da1fd6c9c91a

Download Submit
C:\ProgramData\Hdlharas\mdkhm.zip

Filesize
56KB

MD5
b635f6f767e485c7e17833411d567712

SHA1
5a9cbdca7794aae308c44edfa7a1ff5b155e4aa8

SHA256
6838286fb88e9e4e68882601a13fa770f1b510a0a86389b6a29070a129bf2e5e

SHA512
551ba05bd44e66685f359802b35a8c9775792a12844906b4b53e1a000d56624c6db323754331c9f399072790991c1b256d9114a50fb78111652a1c973d2880af

Download Submit
memory/1072-0-0x00007FFDF6963000-0x00007FFDF6965000-memory.dmp

Filesize
8KB

Download
memory/1072-1-0x00000213C79E0000-0x00000213C79FE000-memory.dmp

Filesize
120KB

Download
memory/1072-2-0x00007FFDF6960000-0x00007FFDF7422000-memory.dmp

Filesize
10.8MB

Download
memory/1072-38-0x00007FFDF6960000-0x00007FFDF7422000-memory.dmp

Filesize
10.8MB

Download
memory/3432-34-0x00007FFDF6960000-0x00007FFDF7422000-memory.dmp

Filesize
10.8MB

Download
memory/3432-35-0x000002BDCE170000-0x000002BDCEA84000-memory.dmp

Filesize
9.1MB

Download
memory/3432-37-0x00007FFDF6960000-0x00007FFDF7422000-memory.dmp

Filesize
10.8MB

Download
memory/3432-39-0x00007FFDF6960000-0x00007FFDF7422000-memory.dmp

Filesize
10.8MB

Download