8c8bca088ad6cb8189ab3473f230795caf2aacf25f61c59a39cff15928481c1e

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 06:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe
Size

72KB
MD5

c885e3528c6adfc2e444b72a69dc7188
SHA1

89879ab4ba3b7fc4552d71565dc445b7115be793
SHA256

8c8bca088ad6cb8189ab3473f230795caf2aacf25f61c59a39cff15928481c1e
SHA512

149f3e33402446f2f1c2a83d0d1e628e5353c6a2e0c2c0b01a617cf8b0fedf6dd6b72e8c6ba5dbfdd74415ac64f1d0b00951ec183a46591a9bb45074776bd7ad
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1UG:X6a+SOtEvwDpjBZYvQd2B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000002315f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000002315f-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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4500	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 3504 wrote to memory of 4500	3504	2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe	86
PID 3504 wrote to memory of 4500	3504	2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe	86
PID 3504 wrote to memory of 4500	3504	2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_c885e3528c6adfc2e444b72a69dc7188_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4500

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

Loading Replay Monitor...

Downloads

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

Filesize
72KB

MD5
21d894644014c2f5a1490a3e0eade998

SHA1
e536993d625d443ac207a7ca4ceae978fd7abb63

SHA256
4601933eb50d24ed686e428a11a4d2b8cffef2823d29f5884aa3966bdc65a5f6

SHA512
813046dc65c95b39960e7ababa8b5c13fb6e2b32df199acccab6e8e76ec16830719b061ffa69ff46a9c4157fcdd56d07ce244d7d9b2168b1e307087ab1a8e1f9

Download Submit
memory/3504-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3504-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download