b2f4ba23d8c1d6a891fda6af5927b9dd577c2d32698f41d33529234db7fe5533

Analysis

max time kernel
146s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 16:35

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General

Target

2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe
Size

49KB
MD5

6c488cc21a357a1f60f1a32aaf0fa50a
SHA1

d4e184a70c7f79a34ef7ce8af1a3ba59299c69d2
SHA256

b2f4ba23d8c1d6a891fda6af5927b9dd577c2d32698f41d33529234db7fe5533
SHA512

ea647f94b1e208f6a2903e47469c5ae1ba624c4f963a17985cd8a958f04018e4541a79c7756ce74ac47e90c9c596df81b7dfcfea3943b8beb98d16f7ae548c46
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakl1J:V6a+pOtEvwDpj0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320a-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320a-12.dat	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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	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 1088 wrote to memory of 2212	1088	2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe	89
PID 1088 wrote to memory of 2212	1088	2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe	89
PID 1088 wrote to memory of 2212	1088	2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_6c488cc21a357a1f60f1a32aaf0fa50a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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\asih.exe

Filesize
50KB

MD5
0462827fa4538ee27f81f129c9875725

SHA1
fe3fe166d87ee652397eb2295f465ce5ed531d18

SHA256
5ca9b0478cedac5dce6ea6a93972d210ce14e46f57fcaecba8ddc90793145c1b

SHA512
609e18330415470d7f94dcf77c08f956ba40e103d27b7f8b1e4b1671c11dec51b5bcf1370c41236432611b94c0a44cfebad9b28b7fed4e13e1d42874f4eef978

Download Submit
memory/1088-0-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/1088-1-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/1088-2-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/2212-17-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/2212-19-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download