b508b548e6c149326a4035c86cabb24945c8f69fb20cef29963a06ed38858640

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2024 03:43

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General

Target

2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe
Size

31KB
MD5

ffec908131626d25b5249fd7c5a47380
SHA1

f4861e3244298e24bec4f89aec0628819e703f50
SHA256

b508b548e6c149326a4035c86cabb24945c8f69fb20cef29963a06ed38858640
SHA512

a8b92fe22cc722695517c24ef6cb338c8c78b26b3a45d39413d20e3dc187b9d027fabccbc27dd8c1ee2103990c9b2cb5b1c3222a3981b467a35da0a236608036
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunvsz:bA74zYcgT/Ekd0ryfjPIunvsz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023228-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	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 4400 wrote to memory of 2828	4400	2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe	88
PID 4400 wrote to memory of 2828	4400	2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe	88
PID 4400 wrote to memory of 2828	4400	2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_ffec908131626d25b5249fd7c5a47380_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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
31KB

MD5
b5b0a6ffd2e470d13dabf4de7a423c51

SHA1
b92c98977fe07ccb694ad910c0a30f5efe01cafe

SHA256
b4509aa8273cc53c3e55ab40c3d69245fd97b4a8aa3ba623ff2c37cfe31613d1

SHA512
e5ad2869adcf676a687d6112f626ea1e1db845f6e27e6eb0214f3f2d038131a2bb28d1dea19891995024c8be4de89e293bfb410fe1e56aaf9ef34a7b352753ac

Download Submit
memory/2828-18-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/2828-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/4400-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4400-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4400-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download