8a0ed0435a4fc2f9256db11565599934b1e33d57713dfe3fa3479fa087821712

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 16:27

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General

Target

2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe
Size

123KB
MD5

18da705f08ba6e3ccc06405a28f0970e
SHA1

8847027c54aed51c25d32dc313b06c63c72aa16f
SHA256

8a0ed0435a4fc2f9256db11565599934b1e33d57713dfe3fa3479fa087821712
SHA512

6fe9720c87c712f637a79cd813c637562467f160bf5271f5d961075e1d2f12ab4a1b4a48259ef166e30b0f1fac6e0128a0346f1fafe08ec4a9f8960ff70857a8
SSDEEP

768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTKryEz:gUj+AIMOtEvwDpjNbwQEIPlemUhYaWEz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4416	misid.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 3044 wrote to memory of 4416	3044	2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe	88
PID 3044 wrote to memory of 4416	3044	2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe	88
PID 3044 wrote to memory of 4416	3044	2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_18da705f08ba6e3ccc06405a28f0970e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4416

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\misid.exe

Filesize
123KB

MD5
ffff7e78d4cf8ad604919a572d2f491f

SHA1
f2dd3ad4c06351635006712378f7ddf76d466a52

SHA256
888e7959df39818f2c4f3c2149e35072b0649a7248b682c1c0166f6d47168714

SHA512
a69db0bc0f5e53f0e8663eb28a5c9eb0e7a38c2f98cb2c9aa2f263bbc44cada4b078b810975d65044448693d1b047ddddb5daed04e163efc5db85ae8bfded484

Download Submit
memory/3044-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3044-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3044-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4416-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/4416-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download