bd169484df7c5dc7cd08fb1e8f2b6c781aacc250f3c3b3ea5af79a56deccaadb

Analysis

max time kernel
148s
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
11-05-2024 04:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe
Size

40KB
MD5

53085b024a45b6b6e73297259ebd6fac
SHA1

ebb704e23bdaf59071629863302f41fdd427ae11
SHA256

bd169484df7c5dc7cd08fb1e8f2b6c781aacc250f3c3b3ea5af79a56deccaadb
SHA512

63d9c4662fe6b08864edeea33f4190923bfacd531427afe4df600fbf0e444b634075cdf48b0a0e589405dc50b2d5264d80fad83effeffb56594374358dda5e2b
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5ax6y2vw8:V6QFElP6n+gMQMOtEvwDpjyaYaPEw8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2092	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 1976 wrote to memory of 2092	1976	2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe	83
PID 1976 wrote to memory of 2092	1976	2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe	83
PID 1976 wrote to memory of 2092	1976	2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_53085b024a45b6b6e73297259ebd6fac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2092

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
41KB

MD5
5f12d2addcfdd032ee3a0818aa6c665f

SHA1
9df56fa65153f73bd6243c2daba7d9a2822c8e6c

SHA256
764d308d76fa2364eaccd790aa2d8d2eda7bd6cd25e177e41f6479104dad307d

SHA512
04714663dcf32acf2458faa12f3215332a7da61182c59e0d57cb8b7235e36b283b3ae831ddcc297d8e4c1600a76a148e75c40b63de54bd7b675f1d345a3f7bb2

Download Submit
memory/1976-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1976-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1976-8-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2092-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/2092-23-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download