02825388dbfe0ea237b7a6fe98a43bcb0cfc0dae0fad5f97a92c572d695dd616

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 21:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe
Size

39KB
MD5

b8a424aeb44e36a3282c28e18d96c0ea
SHA1

7231d527a348d09c2c46136e58fef394339a6a72
SHA256

02825388dbfe0ea237b7a6fe98a43bcb0cfc0dae0fad5f97a92c572d695dd616
SHA512

fe59d9a9ed0f842fff57a865451df114d86a4531572f6fc7f22ff1784aab8c2b61adbd3175f791b6ac6b12eb2f521e7fa5df0c9bcb0dfd91e6e1f1adff348290
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axZmGK:V6QFElP6n+gMQMOtEvwDpjyaYa/mN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b73-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b73-12.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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3456	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 4556 wrote to memory of 3456	4556	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	84
PID 4556 wrote to memory of 3456	4556	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	84
PID 4556 wrote to memory of 3456	4556	2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_b8a424aeb44e36a3282c28e18d96c0ea_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3456

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
39KB

MD5
bc804580643eaa98570df89bd462f5c5

SHA1
9f512e56c5aaed4625d2876131276db8cca2c3ce

SHA256
2292bcd66630d46021db12c659bd258d48452e21dd8dfd127c3724b70f0454d2

SHA512
c7badd01d94ef9456c359ecfc08248071c2681b6d70ddab1725951e4fdb8bb18b23923c02973665f4b4c6907b037f39a3cf05c4f99d03f763cc21b13809d4d3b

Download Submit
memory/3456-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3456-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4556-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4556-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4556-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download