2c5cc7c50bbf18f9dbd53c032cdf293ee17e29bfbbf6ec9979c5c8fc562fa623

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-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
behavioral1/files/0x000c000000015cb0-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015cb0-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2156	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe
2156	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 2156	1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	28
PID 1336 wrote to memory of 2156	1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	28
PID 1336 wrote to memory of 2156	1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	28
PID 1336 wrote to memory of 2156	1336	2024-05-25_fab429c9082260029575fe8720d29963_cryptolocker.exe	28

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⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
54KB

MD5
5f2b1ab9b76e0f75d907f25cf70586e5

SHA1
e36ae1fa0c7ca5ca927af90a5e3fc8911bbf2fa7

SHA256
6a0126551c461a62fdeedd63034f598a1a87eee52f5d0cf40864fb692a9823af

SHA512
bc5cb30169cd182fb1bf4e622d4589ab2119aa39085df50d92dfb15ad7037285e3b6152122cd2c5087f2e34a72692690cfc64e0b8b5384ae09bb3839a4dcb9bd

Download Submit
memory/1336-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1336-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1336-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2156-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download