f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
23-04-2024 00:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
Size

44KB
MD5

8be8e873910b1c0a9dac6f267fcbc057
SHA1

99ef8b4a025439a9864c3ff52a5546f9e26ff80e
SHA256

f2b24d2dbf28e2773ec8f85c20db3af9acab854bb78fc61461ad5e7164fae005
SHA512

dfdea49d20ec348a4e2b36a3ecac31db71f9a484549db732e71435ac00c5bb66a4ff9878499ab5501ffe46ce3af85973935a50f60b99b4c30850bb99bc0a305e
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNN:bgGYcA/53GADw8Cl/w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3952	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 548 wrote to memory of 3952	548	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	89
PID 548 wrote to memory of 3952	548	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	89
PID 548 wrote to memory of 3952	548	2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_8be8e873910b1c0a9dac6f267fcbc057_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3952

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\hasfj.exe

Filesize
44KB

MD5
3566f1013139845d563a4c3795bd1550

SHA1
ab13d6161b3d48904affeba469e26c927b0f79bf

SHA256
f7bfda86d0ca4f32cd2c32f336317de43ef6de8a801281ce7ea52984288f64e5

SHA512
9420e2c5bfc9dad9b8ebb5a70c5b2ecacc1618e1bd9152b87591629597ef784e277b9c9dc337270744f41ad93d8ab441d7f1c6afafe6af79835815ce35463360

Download Submit
memory/548-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/548-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/548-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3952-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3952-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download