61472d1784f2bb481cf02515ee533905e5ca81de4d1b993a989dc7c436929301

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
14/06/2024, 01:01

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General

Target

2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe
Size

44KB
MD5

9000a7bd71a886cc1efd8eff757210c0
SHA1

0cecba79d33e578affb2c4d5e01021f859d608c8
SHA256

61472d1784f2bb481cf02515ee533905e5ca81de4d1b993a989dc7c436929301
SHA512

69370ab9ef0ff96e7e8c7a420a30ded411b6dfe3714573775794b3c630f535639bd0130cf2745d3f6fd7f9b87927afe92e6c5a3b15affe9c9f76442cfe8cf8bb
SSDEEP

768:nf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGWXOQ69zbjlAAb:f1KhxqwtdgI2MyzNORQtOflIwoHNV2Xh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002328d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002328d-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4064	hurok.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 4712 wrote to memory of 4064	4712	2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe	81
PID 4712 wrote to memory of 4064	4712	2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe	81
PID 4712 wrote to memory of 4064	4712	2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_9000a7bd71a886cc1efd8eff757210c0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:4064

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\hurok.exe

Filesize
44KB

MD5
4d582b2666bb51572d879774e45a353d

SHA1
3b5c9f81d300d02a43a992f800ea9b6342f810e4

SHA256
7dde20e69044274ebd67c6734277629575df8c92c67b83c55820457eb1d28f90

SHA512
44eb227dec32bb94ef0f1e471a33985eac9670e2eee428a20b5b7f570bc13e2fda608d7a8cef13a50523dc3be8b41acbf377607a2eccf6adcf2190c8f8718128

Download Submit
memory/4064-25-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/4712-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4712-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4712-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download