5afec0d556b7e1eb2f4c6983c0c5ded693131245b4057d27c98879bc09ed6bbe

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 01:29

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General

Target

2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe
Size

34KB
MD5

51485afd0ec6ca6aecf56ddfc72851f7
SHA1

9e21b2c74d76defb821a39b18ad84356dd002c13
SHA256

5afec0d556b7e1eb2f4c6983c0c5ded693131245b4057d27c98879bc09ed6bbe
SHA512

a2a342bdd488b9980068a3fa6f4e071b6c554d1063bc2f85c04435ebd42318ab083c1726193614541ee57b4979f8342d91f8ec7a9afb2d4dcf4155c4ee3017cd
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lRcf:bA74zYcgT/Ekd0ryfjPIunqpeNswmHf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023236-12.dat	CryptoLocker_rule2

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-1-5-21-1790404759-2178872477-2616469472-1000\Control Panel\International\Geo\Nation	2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5024	hasfj.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 3308 wrote to memory of 5024	3308	2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe	86
PID 3308 wrote to memory of 5024	3308	2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe	86
PID 3308 wrote to memory of 5024	3308	2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_51485afd0ec6ca6aecf56ddfc72851f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3308
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:5024

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\hasfj.exe

Filesize
34KB

MD5
dd799209ab6cff89cae9b993becc15c7

SHA1
ed159ffb1993f6ab555cd47cf0e4e1df4c60c935

SHA256
ffea01b94bcae8fd50e2f063afcc84ddc1c68decbe56fe953da4fc7d72422474

SHA512
29ec3012f76907e6953623a479de73441cd28dd3175cf80d39dbaace97fa234dbfdbf40c3ce24fff8a168efcfc8e9b868ee7112b01cd892705337bcb21dccc1b

Download Submit
memory/3308-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3308-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3308-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5024-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/5024-18-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download