6bc7baeda695513fde36b99d32b48025e49e2559959a713f5a932f2d47bcf661

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 07:30

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General

Target

2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe
Size

87KB
MD5

574af9407b561e37e2a01f0abd8daa50
SHA1

29384ade1fb19c733cd9261765bbcd551e331791
SHA256

6bc7baeda695513fde36b99d32b48025e49e2559959a713f5a932f2d47bcf661
SHA512

d6ba16b220f65f68505c0645cd27e3f099575fa06ffe01b921fcda979adea01e8964a86b0f2f4fc46d17c774a023eeec781b375a07a04356334f30cf7b237e93
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6a1:V6a+pOtEvwDpjvpB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000232a4-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000232a4-12.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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1376	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 1204 wrote to memory of 1376	1204	2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe	82
PID 1204 wrote to memory of 1376	1204	2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe	82
PID 1204 wrote to memory of 1376	1204	2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_574af9407b561e37e2a01f0abd8daa50_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1376

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
87KB

MD5
14cee150874cd6e58ef9400634624679

SHA1
03e9e8c537095d19abc2aea313abfeb6dc1c5e42

SHA256
b40a36a19b5c4d684dd836cf5d0fc9a06d118d0dd61b1ec81113b6c83c709c27

SHA512
9fcd302348a67b851022851c38316a3292d416c39e91b4739ff903357cb91399a07075d5af53a26b3d0659731fcda9e95e3994f253e27dee4c9c609230cb6e35

Download Submit
memory/1204-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1204-1-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1204-8-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1376-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1376-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download