1297fc17226621158b17e5bac224c3fcec7aaa7226e8f341be2bc8ca4c794198

Analysis

max time kernel
140s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
05/06/2024, 21:21

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe
Size

53KB
MD5

3425616b8efbbed9e15648014d1181b0
SHA1

e9bd7a837321c4f1b1179d069566008df5ee6a46
SHA256

1297fc17226621158b17e5bac224c3fcec7aaa7226e8f341be2bc8ca4c794198
SHA512

fd7dd938990b8f0b44609b7e736b4b572424449d0bb19c06153a9fb7a1fcdd5e79e87a09657a12431c355ba682da338a4a74a735afdbb465493df0f9db698611
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIj:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233c0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233c0-12.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	2024-06-05_3425616b8efbbed9e15648014d1181b0_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
4304	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 940 wrote to memory of 4304	940	2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe	83
PID 940 wrote to memory of 4304	940	2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe	83
PID 940 wrote to memory of 4304	940	2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_3425616b8efbbed9e15648014d1181b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:940
- 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: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

Loading Replay Monitor...

Downloads

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

Filesize
53KB

MD5
822f7854414d4baddc887252f157869f

SHA1
7754408fc3c641ebfbcb24b879007dc2415c5e21

SHA256
5b7aec0f88b97595178082576c9796374b4694cacaa291f91862e23992e58600

SHA512
80c2756501f90006c3b75e8a08c71cbeea732f0a2e37cb55b5c8a6f442acd360320a041651272e1eeb1998cbd950cd5801df5ca7240c891804a3b2e569e6a6f8

Download Submit
memory/940-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/940-7-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/940-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4304-25-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download