d66787752075280492e7519b25dfe04f538e0ce9e098474cd271d411cfe4a7e0

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 23:09

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General

Target

2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe
Size

36KB
MD5

c46ffc53cea4d0d46e47f1d6aac56810
SHA1

5567090a62699d2fd59a681d5250b815a05a71e6
SHA256

d66787752075280492e7519b25dfe04f538e0ce9e098474cd271d411cfe4a7e0
SHA512

59c840213b2721eb9ce11deca66b7f7333703580319e59081837a3ce61300905dabfda56d96ca9b841fb22507ad79abf0d12dd173e9e028a4e5e860921e2f485
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYOJg:vj+jsMQMOtEvwDpj5HcSYOa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023229-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023229-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	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 5724 wrote to memory of 2708	5724	2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe	83
PID 5724 wrote to memory of 2708	5724	2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe	83
PID 5724 wrote to memory of 2708	5724	2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_c46ffc53cea4d0d46e47f1d6aac56810_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5724
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

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
36KB

MD5
06cbb2998ecc8bd84dbe237ae0493c58

SHA1
12559a734b08c4c5095b6cebceed7f35a562321c

SHA256
d8884d9ea67a89d3d2092587e347c2537fc6c7fd7c5d682b9079035dca2980c1

SHA512
15feea760b4d02ccd3cfa32a4d7ea908128cf495dbcf2fa2717b6a60ebc89331dea28f6ccd777e3a809e01c9d7d1a3cf74d4bc58e0cb5596f3ad30c11e28fd2a

Download Submit
memory/2708-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2708-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5724-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5724-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5724-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download