a59c0238904a75859677613c7fc9f484c298144b293c05f7176848207cb0a2b5

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 15:37

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General

Target

2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe
Size

46KB
MD5

9978a4e5b1eb10206a346102d237e073
SHA1

707d57c667326fa15db9b1636bafae53ba246c00
SHA256

a59c0238904a75859677613c7fc9f484c298144b293c05f7176848207cb0a2b5
SHA512

2594de34592a246e4dee4852ea34d455300831b0f3894495202f7d7aa1921eaa733591a3f57ef009c0036bac790fa1c8024f52c0860a0ef484d453fa0fb8a828
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvD/:bgGYcA/53GAA6y37nb7/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2428	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2340	2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2428	2340	2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe	28
PID 2340 wrote to memory of 2428	2340	2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe	28
PID 2340 wrote to memory of 2428	2340	2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe	28
PID 2340 wrote to memory of 2428	2340	2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_9978a4e5b1eb10206a346102d237e073_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2428

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\hasfj.exe

Filesize
47KB

MD5
9518787afc1b0965ae120d16f0076491

SHA1
702d61024b7ba12a04a1787f07b047b5bcd03b71

SHA256
7141f9d9ca8ba214b0256d3ceafc53c67792df68b03b9c1c68329bfda9d2f761

SHA512
a18803c570ee3b720cf23e2e74bd5161b143c8251be002dc398dc5c1e12c7c9d52a60fef6e535887a3ea844dd3731bfe1b1473bfea65ecf2e9d917f7e1540f69

Download Submit
memory/2340-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2340-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2340-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2428-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2428-20-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download