65f0ffb9bd42e87d9318f1a282ad3c00e363008e72cdfde034e2794a97ff8322

Analysis

max time kernel
1s
max time network
25s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 04:31

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General

Target

2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe
Size

44KB
MD5

294e859caa1f46c8d90bb21904ca3d27
SHA1

649205b7eaab17983baffd8d4882460dab2009db
SHA256

65f0ffb9bd42e87d9318f1a282ad3c00e363008e72cdfde034e2794a97ff8322
SHA512

5e3c06d15c2785ae3452eeed301121115d25e8e0d253eecaf38a49ca9c36f4e5bf3d709ce3b554102483d32d6fea9bb7da9cc3bede01ff21b4f3c2cf2c8e51e5
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9Unu/B:bIDOw9a0Dwo3P1ojvUSD4PIn4B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.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 4944 wrote to memory of 1468	4944	2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe	84
PID 4944 wrote to memory of 1468	4944	2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe	84
PID 4944 wrote to memory of 1468	4944	2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_294e859caa1f46c8d90bb21904ca3d27_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  PID:1468

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\lossy.exe

Filesize
44KB

MD5
8d44647ec7bb1dd49b0160272a026bed

SHA1
5d596f22251627a0d7863c12f5b003d5429c71c8

SHA256
a34ca3e65f40ea8d64af0d6ed4ab53a4e22355b21b62d0b718b97c7e1e068516

SHA512
a27a11e36c6e8c5539a35d52940d10b79e058479aac3cf9b0047f9b2c93259af1154ae799c7df0d6321ddc388802755483b6c198e4f479557ce0663b28a1bcfc

Download Submit
memory/4944-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4944-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4944-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download