377594a8191a0bdd2133686db6d744d095142aa185de927aa330c681192e4d33

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/08/2024, 01:23

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General

Target

2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe
Size

63KB
MD5

25f8fd0b600506c5c042cd966c86a037
SHA1

0cf17db357ebbb3f311ea7b73ffae5196325ac49
SHA256

377594a8191a0bdd2133686db6d744d095142aa185de927aa330c681192e4d33
SHA512

5b2edc5e18bd647cbeb5f5490497d926546e36888b058953584e53c79819af1d1d40e2dc57aab0e23c244395b15f0c1ddb3f0409c31b04b97ab6078c0f3b4ec6
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnT5L:btng54SMLr+/AO/kIhfoKMHda5

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3156	gewos.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	2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 3156	4920	2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe	85
PID 4920 wrote to memory of 3156	4920	2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe	85
PID 4920 wrote to memory of 3156	4920	2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-08_25f8fd0b600506c5c042cd966c86a037_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3156

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

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Downloads

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

Filesize
64KB

MD5
0162efb50bae91bc21f96d61deda3f1b

SHA1
52eb852a18f585fa46c7580fdef5b3cf0ab4b666

SHA256
47cfd9a356c838acc53ff0e29465494887834493d3fe787f32e7f9b169976a46

SHA512
931bb9bc94e5a196697dcbaeaef2006034ed891c1ac2eaae6e746dd65d383e76f34e54a7aa1c63410feed0f0dbf410a088d5f7803dc635baeefd68e4e8de51ee

Download Submit
memory/3156-25-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download
memory/4920-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4920-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4920-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download