329408c0359e7803c670859a289487433e6d90d38b23bd6e9d952b6792e2a316

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 03:24

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General

Target

2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe
Size

31KB
MD5

119e873426f6e2712158ccff149e8b04
SHA1

d971c8dff3dc75be11a1ebd8ccd9dbb2be297857
SHA256

329408c0359e7803c670859a289487433e6d90d38b23bd6e9d952b6792e2a316
SHA512

5102f59cd669b3f7147b0f49d21e723a234ed7f98726fe8329bfb27f554a39c293da3fdf3f50f438fc2f3ba770647de1157558ea6d93a3b6bb452771a287f980
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfF:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c5d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c5d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-06-09_119e873426f6e2712158ccff149e8b04_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
1740	2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe
3012	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 3012	1740	2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe	28
PID 1740 wrote to memory of 3012	1740	2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe	28
PID 1740 wrote to memory of 3012	1740	2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe	28
PID 1740 wrote to memory of 3012	1740	2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_119e873426f6e2712158ccff149e8b04_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1740
- 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:3012

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
31KB

MD5
344d314a54cbbfea9ba8623785f4bca6

SHA1
9a98910baaf9f135e96d7984e12a680b918a8f72

SHA256
80af1cc2a5eae5ae2f3b80b4c687d3dc84dd5b48890baa96855d5b9cde9246a3

SHA512
bb3cec979e50bd327e075fe14bce1852aa42d64b85d30091afce183e64d4caa6a6562b5a65b7264f2555ab186b5eedd4cf5f90e3bb2b363f68623345a2235dbd

Download Submit
memory/1740-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1740-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download