ddfac8cccf4c3845bd199f26162afbae969677301060684c0052edf7c1dad7e4

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/06/2024, 06:30

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General

Target

2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe
Size

36KB
MD5

5916d58ddd525d2abc7ea59d4fd76483
SHA1

72b4391e4bfc8eec486bc2c5e2f995c69c0753a3
SHA256

ddfac8cccf4c3845bd199f26162afbae969677301060684c0052edf7c1dad7e4
SHA512

686b476f95624574523b8f57f86f7505a3582236736b7f73c8a4452500dd30ebdf19ab494dc097d399a0d9c9bb0c25bf1e26faa1ba17425ef6d1691e45eb31ce
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswm6W7I:bA6YcA/X6G0W1PX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023416-12.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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2412	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 4760 wrote to memory of 2412	4760	2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe	81
PID 4760 wrote to memory of 2412	4760	2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe	81
PID 4760 wrote to memory of 2412	4760	2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_5916d58ddd525d2abc7ea59d4fd76483_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2412

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
36KB

MD5
a2c13aa828b2463ceb9af564ad1a6fb6

SHA1
3002383d068f5f3137fcf12161887cbc167b64a5

SHA256
99b064e9668ca786fb9b303a8d09fc7959a2e2415d5bbedc49890ba70c5d67dd

SHA512
d366b5aca132c6991cf733ecabd54ee5998c0f527081a7b0509e3528da83aa178c77292fce55c738005b8fd99957b43de7013b0e420d898c07dbf0ec1cd493dd

Download Submit
memory/4760-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4760-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4760-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download