928f83de46df937c6b26891af77b3fe88b351aab6f5c3580e3caf8f1dc8571d8

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20-06-2024 04:36

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General

Target

2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe
Size

47KB
MD5

de745a42217582caaa7267f115bcf8a6
SHA1

1e07ff3d3c16b4e67c529f83ded621196b5aee30
SHA256

928f83de46df937c6b26891af77b3fe88b351aab6f5c3580e3caf8f1dc8571d8
SHA512

b28f8415c347bf56f550ca345c4f1b508c027892d5cc10d5bf531d347784a066128470cd10a898461f6b6c6c72ffccc1c4803ebaaada6cc6db63a0f89e61d733
SSDEEP

768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrU:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwz4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1876	asih.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 652 wrote to memory of 1876	652	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	81
PID 652 wrote to memory of 1876	652	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	81
PID 652 wrote to memory of 1876	652	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:652
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1876

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\asih.exe

Filesize
47KB

MD5
10658c1fe33276ba8d61ab97cb086841

SHA1
16a9e7abc11fd70c5b638b59680515b071a3e153

SHA256
ff9054c3aa77e96998f1c51c082fb230e254881c1d25b844b701dc3ed7c0dd89

SHA512
9bc48ffb3e9bf94664861ec576e23719b772cbbe7c6818a6a273b50897ff6735d986f7eafcda52f7944ccc027a82b00a08daaee9338071df8dd09d31a979be85

Download Submit
memory/652-0-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/652-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/652-8-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1876-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download