2c5cc7c50bbf18f9dbd53c032cdf293ee17e29bfbbf6ec9979c5c8fc562fa623

Analysis

max time kernel
130s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25-05-2024 04:17

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General

Target

2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe
Size

54KB
MD5

fab429c9082260029575fe8720d29963
SHA1

e61c5fe7aa7e55d71095b4c35b3ad515c950d93c
SHA256

2c5cc7c50bbf18f9dbd53c032cdf293ee17e29bfbbf6ec9979c5c8fc562fa623
SHA512

f1fe40392f9e7bddd710b37a229eb20c3bf0693d18bc803224179d8541794950c9f71c17c130cb8d08694293aa53b574a6dd3de9776dc41d9e5e8e6c5d540549
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Ep:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000232a4-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000232a4-12.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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3504	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 3100 wrote to memory of 3504	3100	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	82
PID 3100 wrote to memory of 3504	3100	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	82
PID 3100 wrote to memory of 3504	3100	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3100
- 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:3504

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
54KB

MD5
5f2b1ab9b76e0f75d907f25cf70586e5

SHA1
e36ae1fa0c7ca5ca927af90a5e3fc8911bbf2fa7

SHA256
6a0126551c461a62fdeedd63034f598a1a87eee52f5d0cf40864fb692a9823af

SHA512
bc5cb30169cd182fb1bf4e622d4589ab2119aa39085df50d92dfb15ad7037285e3b6152122cd2c5087f2e34a72692690cfc64e0b8b5384ae09bb3839a4dcb9bd

Download Submit
memory/3100-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3100-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3100-8-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3504-25-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download