5b7f7e319d8eb4ba08e140aa63f9c2bfcdbc0484e4281565f513a24c7e5e6a95

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 23:24

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General

Target

2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe
Size

42KB
MD5

3af4a4564ee3570e72a71ebcb5246730
SHA1

97d720d23c38e80408966fd6d933c527f91b5d56
SHA256

5b7f7e319d8eb4ba08e140aa63f9c2bfcdbc0484e4281565f513a24c7e5e6a95
SHA512

3821c66fc4e0f48a066e558e4cdd64bf96316b00db3197a474b091798693d50aa7856f8f07648785b150679bdd4727243aec0d6d2c0a2fec971caabc98de4913
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwx:bA6YcA/X6G0W143Qx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023459-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3112	hasfj.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3800 wrote to memory of 3112	3800	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	82
PID 3800 wrote to memory of 3112	3800	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	82
PID 3800 wrote to memory of 3112	3800	2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_3af4a4564ee3570e72a71ebcb5246730_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3800
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
42KB

MD5
79b8e9a23fdb67b48ed2860427b7d6b6

SHA1
89a1c80dfd44ad276c8c47cfb0f933161a6f6dec

SHA256
37e53b17237495c27bea2afcbf704a0146c681d975980bd6398cb06b0836744e

SHA512
830da029412adea7392e32d76f33d5d9f5420ecbb02e1df80364ce12e922635161051ea1df6e9908c6b14d73c1e0dd5795e62d65be99b8583e5588b8bb9d88e5

Download Submit
memory/3112-18-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3112-17-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3800-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3800-2-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/3800-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download