100c3fbc16ae172be2b6815453672db00b829f5948823df14ad2d54b273049b0

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 03:48

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General

Target

2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe
Size

40KB
MD5

4508b1ed294bec89f52411df0b408d03
SHA1

a2766131baa062011da268b6973fa5ab1ee49db3
SHA256

100c3fbc16ae172be2b6815453672db00b829f5948823df14ad2d54b273049b0
SHA512

49ca28c0cb485848f47f6f792b4435e6859dd5120aa78b9c5d8e25dc6f3e04350400bc22952c067d15b4cd32eb690a7d8e48aabaa557afcc6297cc1835875597
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCP:bA6YcA/X6G0W143QA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000232a4-12.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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
548	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 5080 wrote to memory of 548	5080	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	81
PID 5080 wrote to memory of 548	5080	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	81
PID 5080 wrote to memory of 548	5080	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:548

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
41KB

MD5
05fe2eb8948c77997bf0456344149021

SHA1
70830e33b97cac336c2a090cb245f60ad049bb4f

SHA256
d4bcf9aff86016de64d62d82ac67f0bf420c79fb072d3178927a482b7e8716c4

SHA512
c130e711f77ac1c5280a37927145df3eb3b5c2f5ab1b4c130bbd344d84559578d5f570b0158c57653c731c0994c6a9d013772876a5bdded8e6329122ca9f55dd

Download Submit
memory/548-17-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/548-23-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/5080-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5080-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5080-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download