ed44f394d8e94aafd5549e8d21ae6ceeece949a82688c0dc02d732615de87f47

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 00:41

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General

Target

2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe
Size

30KB
MD5

c05c19b2560394cce4d41e33dc78fee5
SHA1

fb0b48b1c3b6eff54ebf00ddf2512cab4a9f6ed7
SHA256

ed44f394d8e94aafd5549e8d21ae6ceeece949a82688c0dc02d732615de87f47
SHA512

57e8242a1dbca305cb2bb4080f62ddbc50196793db63e1a6855402250f6ae1a9263725418de3a0d1ce2c74caa226bea8135b48117777ed7bc2cf669e6f1f397d
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIyNl:bA74zYcgT/Ekd0ryfjPIunt/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320f-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
208	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 5800 wrote to memory of 208	5800	2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe	89
PID 5800 wrote to memory of 208	5800	2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe	89
PID 5800 wrote to memory of 208	5800	2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_c05c19b2560394cce4d41e33dc78fee5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5800
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:208

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
f4cf5a117a60049aea9ce6f99a818dde

SHA1
03647d6279dcec70a821e3d4c529c862f74e5e29

SHA256
9f3fb3f19a8b65133064078d9820370005978bab3ba98a4bb7cdc5d7a73f9fb1

SHA512
876619bf9732bea40742858a83f91dc279276ecbec34adf44418c66bcdaa629e4663692da33a1cb66ee8fbd5ad9b73ddc1606999e98bb6ad06eda94d7bf3134e

Download Submit
memory/208-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/208-19-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/5800-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/5800-2-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/5800-1-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download