6df373e963643be68009e0a7f1ebadf7ac59ca3bd67866410400cf84dec3f1c5

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 20:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe
Size

34KB
MD5

1a5f6a47f25b2a0fd845762f58a2b2c8
SHA1

b3bb18a2f9c54c88143f71d9b2613678af051777
SHA256

6df373e963643be68009e0a7f1ebadf7ac59ca3bd67866410400cf84dec3f1c5
SHA512

b36df6704e103fd893fbf225ab5a725c20b4bc56f34e3819f5b8268de804a3426684c0cf0575b1795b7ddb6270e2a366ad7cbf01f66d46c1bc3dc88cbd825cd3
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lmO:bA74zYcgT/Ekd0ryfjPIunqpeNswm9O

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002312d-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4320	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 3716 wrote to memory of 4320	3716	2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe	84
PID 3716 wrote to memory of 4320	3716	2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe	84
PID 3716 wrote to memory of 4320	3716	2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_1a5f6a47f25b2a0fd845762f58a2b2c8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4320

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

Loading Replay Monitor...

Downloads

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

Filesize
34KB

MD5
5fed854ed3a0ea6292d3c5297382d43a

SHA1
c4e71daa272cc0d41aa73099db2922cc21f1ed78

SHA256
f721208a5c1d24db4eaf20cceb9eddf97f90ab36328dc03e0986f8faf4273aaa

SHA512
8029fd79e390218589e789c56d1b96dde2d8eec63be0d8f752ae4aa45f8390395053692718d94a7414af84aaa7eb1b43101ccc1c4c9906f60e78714b8e7cb15b

Download Submit
memory/3716-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3716-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3716-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4320-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4320-18-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download