6f8c704500017e123ec54a6d1cdd72f7fe0f2a56c47758ddd996fe25a9c05815

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 13:26

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General

Target

2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe
Size

39KB
MD5

a26034cf81dd1bad7f96d22919cb7247
SHA1

01c0280c175a3ad570eb5158e0e8959a1cf48d17
SHA256

6f8c704500017e123ec54a6d1cdd72f7fe0f2a56c47758ddd996fe25a9c05815
SHA512

2c6453b4c2a68bafb8f7b9d8944373eceb3f1eaca73f4bae6e1d44efa48834c09aaac54aea57c7d765b4c65853714b408385ba0fb7954d84b45af4e0625c10b3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCw0R:X6QFElP6n+gJQMOtEvwDpjBmzDU5R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2296	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 872 wrote to memory of 2296	872	2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe	81
PID 872 wrote to memory of 2296	872	2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe	81
PID 872 wrote to memory of 2296	872	2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_a26034cf81dd1bad7f96d22919cb7247_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2296

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
39KB

MD5
a1311e73f3cda7e0c4d6f48a8eeaf5b4

SHA1
24b568eda3ff333198b4b1f1d8f427d1bc2570fd

SHA256
8ad70783e15453b79ebd0296f6d3397f3a4e2e6666815a923f625c0925e72c10

SHA512
31840a12990e503c1679a3e18bb21f9bd0d646959135f3a61a8460a46b484a17838016404cfdabeebe8b629bc266f1ade3fc0bb083b18c3cee87beaa0c36b50e

Download Submit
memory/872-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/872-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/872-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2296-17-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2296-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download