1f8b780ba0abadc0487f7360a1f777427cd7b5f9dd16fb4f89b3c440e3c29ae4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 01:48

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General

Target

2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe
Size

54KB
MD5

6f4d35b5004e187041f3d108804d9c9d
SHA1

68c3050d8cd2d851515bd64b33ed8f3a56fb7310
SHA256

1f8b780ba0abadc0487f7360a1f777427cd7b5f9dd16fb4f89b3c440e3c29ae4
SHA512

52ca5a73d4938d16f42d0fe0fd48fb8487a3314c6bade6cce5f0b50f622f5dfde61e0c91dd8ba4d178b736ebf73718285193dfe85185572c8323aef5fa5f35a8
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr61:bc/y2lm6iH/NLp17zrV9j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2424	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_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
2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe
2424	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2424	2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe	28
PID 2364 wrote to memory of 2424	2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe	28
PID 2364 wrote to memory of 2424	2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe	28
PID 2364 wrote to memory of 2424	2364	2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_6f4d35b5004e187041f3d108804d9c9d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2424

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\rewok.exe

Filesize
55KB

MD5
ec18851ab5dd5961efe9d74699a84c2f

SHA1
894aa78b5e67a658345b2d1f7a2ae99736452742

SHA256
352df23d4e783c067744bcb01688a5c15cf8aaea7497ed01b872f48504111eb1

SHA512
c28a0ff0697cc38454879623fe3f7a82659d3553a45253a8dddb02e4a4c58e959629276a6fc0ff3247c3d32fd054197d26de275071124b6977c670ceb8de51c3

Download Submit
memory/2364-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2364-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2364-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2424-23-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download