df5191468ff60ba4657cbcd085e557700cc9bd830a002c3a071bb5b2064031ca

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 02:30

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General

Target

2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe
Size

36KB
MD5

3f4fbfb68c1b1f41297e1d3d1e955f8b
SHA1

2365f9c1b5bee12215b0bf3164659ed98ddeff6f
SHA256

df5191468ff60ba4657cbcd085e557700cc9bd830a002c3a071bb5b2064031ca
SHA512

9b7fded80b26fb51f7008307b535c504a5825801a32baa75d9b96f548fab32fef25dea5fdf08eee703a8b5f05817f48bb4c47ca573545cd0e9741358778f5bdb
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lxZgH/:bA74zYcgT/Ekd0ryfjPIunqpeNswm6c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4304	hasfj.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 2752 wrote to memory of 4304	2752	2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe	83
PID 2752 wrote to memory of 4304	2752	2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe	83
PID 2752 wrote to memory of 4304	2752	2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_3f4fbfb68c1b1f41297e1d3d1e955f8b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4304

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\hasfj.exe

Filesize
37KB

MD5
0189d4fc0d854f12d2162344f11a9619

SHA1
6f46d1862465e69100ffead70054634a09af4aca

SHA256
71afa058f9e5e4b1647e4b38a8317c5c638649973ab891a0672604cbabe56780

SHA512
e853c1b2c1ae2e0c86edba94d5fd1258cc3137317b0d039874f3602b3bfadd0cb70e5d43d56903cab12d8824ef00cce54f8245015c887ef36f344694ecb7cf15

Download Submit
memory/2752-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2752-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2752-8-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download