7cee52752222655060b6800eb0d1f4232fa9fffd42f33cb25901b6d6be1d11d5

Analysis

max time kernel
150s
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
13/03/2024, 14:49

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General

Target

2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe
Size

41KB
MD5

5aaad8b72138ea73a9c68ec0c82d718b
SHA1

a3dc5eed88acc9626645df5a8ff2cb4c5bc133cf
SHA256

7cee52752222655060b6800eb0d1f4232fa9fffd42f33cb25901b6d6be1d11d5
SHA512

94e545b46fcfb289fdc24ed5161d013a5e54359c677cd0a0673036693b347a2571b83e98d47fe8927515c2d2c3080947b4312e0ef08e111cba65b96fc0667418
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vrBjnF3d:bgGYcA/53GADw8ClrcnF3d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	hasfj.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 3936 wrote to memory of 3980	3936	2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe	90
PID 3936 wrote to memory of 3980	3936	2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe	90
PID 3936 wrote to memory of 3980	3936	2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_5aaad8b72138ea73a9c68ec0c82d718b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3980

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\hasfj.exe

Filesize
41KB

MD5
3ecd5563b0630e14dc6ca8d2baab83a1

SHA1
1ab51f001811b7733b80ebc9aebdd22a9c07c787

SHA256
a72038d55783ec444a193bd911d871108383e62ceb6efa3a6d943c20219874e9

SHA512
20c0149c1e0f37d11664c70d4c6dc599eafa043af286c38216a130f26109a75badefad8168334de9cbb9325992f4a5c796eb62f494f0f8cace83bf58a8cbf4a0

Download Submit
memory/3936-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3936-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3936-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3980-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3980-19-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download