9b17014ea279c192beb242f1858b95b626b5c69183a947423be05d0627e9fe9e

Analysis

max time kernel
139s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 06:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe
Size

63KB
MD5

ca4ebef67c40e975109f599e63fbdec1
SHA1

8b56e76198d9ed477ad063908187968bace5cbce
SHA256

9b17014ea279c192beb242f1858b95b626b5c69183a947423be05d0627e9fe9e
SHA512

e2df496701259698557fae5683d1c7d465b88b386d4dc689005a78ab72124a583b99faa26264bdc2f961bdf86b5108d26b0b729ab02ac174d50f6d2fc11424ab
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293WB:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7i

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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	2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	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 3032 wrote to memory of 2904	3032	2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe	82
PID 3032 wrote to memory of 2904	3032	2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe	82
PID 3032 wrote to memory of 2904	3032	2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_ca4ebef67c40e975109f599e63fbdec1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2904

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
63KB

MD5
abd045448730babf13443480285cfddb

SHA1
3ac69ec5aec902d2cd522a9fc3f3b918d2066cbd

SHA256
4018f054cb0ee90dbe0c2582d19124b0d7b1fc4f507ae8d3706b2045b63b7bdc

SHA512
c72125eaebe5a865b1997fadf5c18edc31924b1c214690b59fd683a708b73e1f9a27877fa0ab42fbaa41c3ee08b15adf5112fea08394bf9d61afd975b9c36a00

Download Submit
memory/2904-25-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3032-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3032-4-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3032-1-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download