5a2cfee95c577bb6c5d75b4ab369b0684613d28887ed382d273612ee2e5b1b98

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 13:51

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General

Target

2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe
Size

43KB
MD5

8dd5b0270429cce13fa7b5bf177d3837
SHA1

10438a8bcb463d72ac39ad6776b3e71c1d694d52
SHA256

5a2cfee95c577bb6c5d75b4ab369b0684613d28887ed382d273612ee2e5b1b98
SHA512

e67e9ce1355e935692ac3cc3ef0c0dfd0246f9c3aa6a0ec6aa7efe71fb4b141b67621a2a6ac5bc270061c2bb58ee8b736b10e5770b5f48c97276639e1d5f833f
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1Yvb9ST3e:bxNrC7kYo1Fxf3s05rwxbF7YvbUT3e

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231b8-12.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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4764	pissa.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 436 wrote to memory of 4764	436	2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe	90
PID 436 wrote to memory of 4764	436	2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe	90
PID 436 wrote to memory of 4764	436	2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_8dd5b0270429cce13fa7b5bf177d3837_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4764

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\pissa.exe

Filesize
44KB

MD5
bc0010d6f685d6199dd9607684288b05

SHA1
360f8038a81f66b2471ef1e52e45d5a23e63eae3

SHA256
0973d645b483e4cdd4ef091145a6a16126a0a4166faae20467388a4a19e557b3

SHA512
30a776f56a54dc39056edfa97733d400790d5e8c7bf8cd01ee99bd66f548c1d42300748c62e1d09e0e7e50d86af498c1814f9cea5ba1094d6d487d4bd70e26a0

Download Submit
memory/436-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/436-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/436-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4764-17-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/4764-19-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download