c54e6901aa1e0cbcebc39b234fc44ae1891d5063fb1e4d9a092e18d4bf39f846

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 17:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe
Size

48KB
MD5

66bc9356cb4cdc819502a21f1ad3d990
SHA1

3914ea7e2b8bd4338bf7e24989939fe690a8a8a1
SHA256

c54e6901aa1e0cbcebc39b234fc44ae1891d5063fb1e4d9a092e18d4bf39f846
SHA512

15c1a9ab661ed6efde1b05e24b420ce360eaf3614df7ff1747473fbf05f228035500d79a3dfb327fe5978e1fd47010c82606dab0bbf2236420cf1c7ebe8b5d04
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hS7J:bgGYcA/53GAA6y37nbS7J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e96f-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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	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 3748 wrote to memory of 2116	3748	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	88
PID 3748 wrote to memory of 2116	3748	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	88
PID 3748 wrote to memory of 2116	3748	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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
48KB

MD5
afdd2a3743e35dbc389bb9eb5c736084

SHA1
5c82ada92c168eded54da3204ab4b133bbe76951

SHA256
8dbee5a5c0acdafd90d7909c27670317d642c66bf91da735c9a5abfb35ecc786

SHA512
dd947bd69f7773c586577a260a5ccacb305c3b15b9fa5278159fb9d42f5da2352a9be9e3ceeda3c64ae36b138eb4b6de383f0fea81ebd97bd7e16d3abf39483e

Download Submit
memory/2116-17-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/2116-19-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/3748-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3748-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3748-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download