87c6b7a5a925fb3ef826d0bc5b622a02ee422ec896de079f3ba594a01029edf4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24/05/2024, 10:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe
Size

46KB
MD5

02d981816ea856323a346ba916cc6b4a
SHA1

8190c995bb0269c68298c7d0281d79843f31201c
SHA256

87c6b7a5a925fb3ef826d0bc5b622a02ee422ec896de079f3ba594a01029edf4
SHA512

ad84915db66ac105cbdf162a2930a949b4f68d8fe70448500d9e3d681bcb13df6b597340b722dd63a3f14d15290335c4d940b664a82a4fff3438be96396f8bbd
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPo8:P6QFElP6k+MRQMOtEvwDpjBQpVXz8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000a00000002328e-13.dat	CryptoLocker_rule2
behavioral2/memory/748-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3196-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3196-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000a00000002328e-13.dat	CryptoLocker_set1
behavioral2/memory/748-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3196-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3196-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3196	asih.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 748 wrote to memory of 3196	748	2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe	83
PID 748 wrote to memory of 3196	748	2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe	83
PID 748 wrote to memory of 3196	748	2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_02d981816ea856323a346ba916cc6b4a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3196

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\asih.exe

Filesize
47KB

MD5
26bd8c60960d2cecb3cca6a8bb746c63

SHA1
0b107f9eae51fadda401d0d795f3383f16847113

SHA256
7ff7d0671b067ea019daa1e5eb7d0357c641b015f4652ecf56a6516174a6fc97

SHA512
2085e9b202686ed6a8df8e983c403a0cd69b40a7e928f3ed3d1329d0bc415826b5819c19af49bc22e5d2a4452dbc748ba99926c6c17774531993623b23e28108

Download Submit
memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/748-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/748-3-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/748-9-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/748-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3196-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3196-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3196-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3196-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download