5459259fce86414bda859055216a1aeb868c19d018edfa9b4927587f147ba9e0

Analysis

max time kernel
163s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 20:25

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General

Target

2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe
Size

50KB
MD5

54dd908d8c8886494a5b9b91764baccf
SHA1

0191c7fcccaef6c7260b8725d27efa1133886315
SHA256

5459259fce86414bda859055216a1aeb868c19d018edfa9b4927587f147ba9e0
SHA512

3ac11f9c80afa383b4713b43160081ba3051f7334b6d79fe460926d8412186adda4517bcd1a5d71e3386ac859d74fb7c9c9cb05c2a0b140f7c82355466b04c66
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaToguM+:X6QFElP6n+gJBMOtEvwDpjBtEJNM+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3512	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 448 wrote to memory of 3512	448	2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe	89
PID 448 wrote to memory of 3512	448	2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe	89
PID 448 wrote to memory of 3512	448	2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_54dd908d8c8886494a5b9b91764baccf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:448
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3512

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
50KB

MD5
f542c3f8ebe1b1798efea4068ba30d15

SHA1
5675766fc84c6771781641edd2f9dd0c89fc5116

SHA256
7108a53cb57453b6ecc1350ba45060b82af683b3cde68ab35e31b599511756ca

SHA512
e357b1c82fd4ad1cb97fb2d1fdef66a8d5d57be34cd0c197cac1aaa4870477182cc0268bddcf554758e7f6d1384e6c87f0c91c0fc1086000ebf581c6b5c92c30

Download Submit
memory/448-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/448-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/448-2-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/3512-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3512-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download