0cce5199517f0107bd1528c62cc6d7b29fa846bb05ad3b980296d832614486b9

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 20:46

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General

Target

2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe
Size

54KB
MD5

bf7cbbdafe86f694bc575de80e8d3b3a
SHA1

c6aa29fece80c0e0615e07460de47bac10f9b611
SHA256

0cce5199517f0107bd1528c62cc6d7b29fa846bb05ad3b980296d832614486b9
SHA512

fd9ff9a73a597eaaf43109c1daaa03819bbe8ea675d34f67285ce78e24c20e013a267ef7ab0a4f9cd474804e74534385a669ee0bfcc383b89169eb42e87a7d83
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakl8eys:V6a+pOtEvwDpj8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0011000000023125-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0011000000023125-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1484	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 2124 wrote to memory of 1484	2124	2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe	89
PID 2124 wrote to memory of 1484	2124	2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe	89
PID 2124 wrote to memory of 1484	2124	2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_bf7cbbdafe86f694bc575de80e8d3b3a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1484

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
54KB

MD5
e026a5c320c8d724783bb7c13c89367a

SHA1
da0a71387d7e7eb0fca219264ca7ca4b1a781260

SHA256
fa8a9d03dd15186288212cdd472ecc4811d58a594050c97c5d464a2ad2f889ef

SHA512
6dd44b017a59391c3c43e257d5e9bbf0c365c620afa8aa913218a8d2a6492ef22e2697d74a5ce580087876cac4e9813202e7407cea652a72a7e727e1eccecec8

Download Submit
memory/1484-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1484-18-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2124-0-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2124-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2124-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download