0aa44082a5383c50a38a9234dad61e212224521f631be72e8357de301d67eaa3

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 00:51

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General

Target

2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe
Size

29KB
MD5

9ae0eb0bc9cf2b2605f314d1540ece7c
SHA1

c2489eab150daaf87aa79f711efc21722958a23e
SHA256

0aa44082a5383c50a38a9234dad61e212224521f631be72e8357de301d67eaa3
SHA512

e0e573a913f6ebdb9a93e715615b6cd1f883c38114808090bccc7c30b83b008c909348ce90063a142bc9424db2fdaf376ae2b41703175b079bb6e0cb77d1710e
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfl:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2344	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_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
1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe
2344	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 2344	1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe	28
PID 1504 wrote to memory of 2344	1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe	28
PID 1504 wrote to memory of 2344	1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe	28
PID 1504 wrote to memory of 2344	1504	2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_9ae0eb0bc9cf2b2605f314d1540ece7c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1504
- 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:2344

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
29KB

MD5
33aa35730c783156ae52305101133e0a

SHA1
3ddbcbf4bc4ef6252cb2932f4137f0d0d90f3831

SHA256
97b6f8c7fab1d6241f7ecdeea32aa535f628876dfeaee5ae8509c26285df919a

SHA512
c2f8d05558511e932b9c45def99595f0a53f621296a3683babfa5785c2d4eb674b36e3c82697519db07816f88da6fb27def85b508023ece51489136824af1bd8

Download Submit
memory/1504-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1504-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1504-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download