712ceeedba3f8d35dd15c5c140f7b34c811aec04d7a0e844de0465484dd7a010

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18-03-2024 23:42

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General

Target

2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe
Size

47KB
MD5

d78c4af850c18ebb5103d060fe6e59a9
SHA1

3baa93f60ee56478f7e148c029dda7db971af59d
SHA256

712ceeedba3f8d35dd15c5c140f7b34c811aec04d7a0e844de0465484dd7a010
SHA512

772c349c7f187da0ee903dd60836dfaf07af13cc39b4b77a7ec4293d49e8ff585be67e6a851226b5c892e4336ed5229d64d0e577263b8ddd2389806bc42970ea
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556BlvE:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
932	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 932	1644	2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe	90
PID 1644 wrote to memory of 932	1644	2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe	90
PID 1644 wrote to memory of 932	1644	2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_d78c4af850c18ebb5103d060fe6e59a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
47KB

MD5
4eb63c5efe02b106ffdb23ecb231fd6c

SHA1
2d7b1795d532423a13f47fd36e7f80a5ee46228f

SHA256
dc9a80836563d95c45c7158f1d7a901bd85eccc8e2d57e23ddb2f4f4fd43a359

SHA512
17b6ef0d8e0f6e0571e4d4e2731567f7aa734aa5edd414173ee266ff04a76b9ec3f9684faa186e9fa9582f6c7d1790134c27afbba3e56070db63fc255357e7c4

Download Submit
memory/932-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/932-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1644-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1644-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1644-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download