12e86354abbf0383ec22d6588a95e5b72f9729fff5ac6fe8c50852d63576dfce

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 22:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe
Size

41KB
MD5

a95ad62639bfdc97d779a6ce2b1207ca
SHA1

32864fd592297bd7f7f64a39165f8edf6abc4779
SHA256

12e86354abbf0383ec22d6588a95e5b72f9729fff5ac6fe8c50852d63576dfce
SHA512

ddb2bcf96d0531a1caf26fc8c62fa91d4caae6001d068d12f3fb1ee2ac8982caeb5a9c4e6737c5fe5e443f4f6fc74c01aba0f5c0884ba9087388b0b4646ea76f
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMvcWd:bc/y2lkF0+B23

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015626-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2000	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_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
624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe
2000	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 2000	624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe	28
PID 624 wrote to memory of 2000	624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe	28
PID 624 wrote to memory of 2000	624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe	28
PID 624 wrote to memory of 2000	624	2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_a95ad62639bfdc97d779a6ce2b1207ca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:624
- 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:2000

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

Loading Replay Monitor...

Downloads

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

Filesize
41KB

MD5
7ddcd13739abe9640c0d5d4b1728f6db

SHA1
57601d9665a9733fea85bb505f27d7bf4ce84273

SHA256
4d501c329848c51681aaa83ec3b8a7309b365d1172c88c8623a73ae705be4204

SHA512
44c20f1ed6797bfa1024a68079117c118a449a6852045d772671ffd873a0fd3313260856c72a86b7c253142610541d24021e5a461e64c7bccc016fecf9f8da01

Download Submit
memory/624-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/624-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/624-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2000-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download