d7af95af83ea504a9d0bd908be3e43907d9a1965f37025d4bc1e91b312ad1a4c

Analysis

max time kernel
146s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 05:50

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General

Target

2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe
Size

31KB
MD5

66d7086b440f1b1a8c213fdd1f66a9b9
SHA1

adec7cbf5668e66fc05f47222352e7f96540ec0e
SHA256

d7af95af83ea504a9d0bd908be3e43907d9a1965f37025d4bc1e91b312ad1a4c
SHA512

f91228b037b053877ae53f645f4c30cb212fc93b5197597146286662a3babdc244095551b8248a6f98d8b0b5455a54de740ad321ca18a749a6c035301d247c7c
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qXpeh9dHz:bAvJCYOOvbRPDEgXRc+BXpadT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002321c-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3538781373-1545967067-4263767959-1000\Control Panel\International\Geo\Nation	2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3538781373-1545967067-4263767959-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	demka.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 1528 wrote to memory of 1828	1528	2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe	90
PID 1528 wrote to memory of 1828	1528	2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe	90
PID 1528 wrote to memory of 1828	1528	2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_66d7086b440f1b1a8c213fdd1f66a9b9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1828

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\demka.exe

Filesize
31KB

MD5
830fb2a44be265be76e7924051e43a32

SHA1
d00887bfbf4c201f8f16389d0e51b6d6838354d6

SHA256
1415aabd30f3abdbf663b7622fcf4347795efacba8e171ce702c74306d5df388

SHA512
aba2aab69d60cb985007d902f0be5c06e92775587864857008b8df6ec163fd60b67b27b41ba99d75ece325e2d41388f1d6a7fc2f70f62b8a22c0f3c61bbe5785

Download Submit
memory/1528-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1528-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1528-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1828-19-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download