3c02671939f012aa2682cd19ff683ab7718080a734f927d3d775920af21594a5

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 04:33

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General

Target

2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe
Size

91KB
MD5

4cb8d64178eff4cd8b270aa790e225db
SHA1

973f0cad758d0912e76cfa3aae70df881b8ae66a
SHA256

3c02671939f012aa2682cd19ff683ab7718080a734f927d3d775920af21594a5
SHA512

2eeb1abe8f77ae4b64a3e1bb7c0507ff05eb01ecc784453316243f2dd4865a9de297c809b7f6164f167b1b8e808702f6ae10d47f55d52084e708cf149c5b0a34
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQoO1:vCjsIOtEvwDpj5H8zPs1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
400	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 2664 wrote to memory of 400	2664	2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe	86
PID 2664 wrote to memory of 400	2664	2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe	86
PID 2664 wrote to memory of 400	2664	2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_4cb8d64178eff4cd8b270aa790e225db_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:400

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
91KB

MD5
28c14cba7081e22de8407f91a3ae910d

SHA1
6467c5927ac483088b20cc92ab9a899f64bf6acf

SHA256
4ef9c6275e3c2a4717159ffd426c646858918df927439c441cf08e62472c60a8

SHA512
b274e94cf772418524256fca0d286032dfbd89003ba515c02d3914f8719f23f23ebca4e95654ce7731e8b582cb2d77824c11710afe238fd965397626737820e3

Download Submit
memory/400-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/400-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2664-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2664-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2664-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download