9fe13be4bbb393fca48716a4e140824b8e9260944960842683a1cb052901d871

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 05:34

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General

Target

2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe
Size

41KB
MD5

b3837283b43750c1c9d0b768b670cc0b
SHA1

ecd9f31fb70ee009ac095bebf6ab94f54e9e007f
SHA256

9fe13be4bbb393fca48716a4e140824b8e9260944960842683a1cb052901d871
SHA512

bb8ced4469b03083b6362797f6dc552f88ceee8fcadd1add0be3a80d8c02c68144e39b5925631d1ea4aa8d2ebaa7055f6d75a5968b76651cc110a6adf639ffdb
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAn7B:bCDOw9aMDooc+vA7B

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	lossy.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 4332	3972	2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe	85
PID 3972 wrote to memory of 4332	3972	2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe	85
PID 3972 wrote to memory of 4332	3972	2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_b3837283b43750c1c9d0b768b670cc0b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4332

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
41KB

MD5
3232d08f2b521885875dbd2e31847c57

SHA1
78d7e996b00d94329a0bf7ea458f7b899739e291

SHA256
13e162d4ca7a7a541f3a06d086130aba723f99a3d754b4679309f09e457ecb0a

SHA512
7cf94f00418707c676aa8b9e16eb6f41e4db4e0c6408a5d644c87e2f8acc209cb705cf27abd54be3ec019d8de605c8787454a16798218880e89ffb36c7613e2d

Download Submit
memory/3972-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3972-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3972-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3972-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/3972-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4332-19-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4332-20-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4332-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download