9139db6c1cdc3d7274b349d79f5b8e5dbbc4b98928d6b6ed4b396a8654f05a2e

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
25/08/2024, 01:59

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General

Target

2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe
Size

30KB
MD5

540c171f9845638295b86dab4ce5ee39
SHA1

eb989e0c6211ba86a743d62ca79b5c2033dc1715
SHA256

9139db6c1cdc3d7274b349d79f5b8e5dbbc4b98928d6b6ed4b396a8654f05a2e
SHA512

a4bcd7ca682d402e35e97f00971732a49dd0e66acf0b507f1a680df12436d084440b2316998e8144115d3abb2ccdc0b808da19a9e1bd038b8d0dbc695f2c3672
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVajFSqhHCI:X6QFElP6n+gJQMOtEvwDpjBc4qhHX

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	asih.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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 3956	1536	2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe	87
PID 1536 wrote to memory of 3956	1536	2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe	87
PID 1536 wrote to memory of 3956	1536	2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-25_540c171f9845638295b86dab4ce5ee39_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3956

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\asih.exe

Filesize
31KB

MD5
903a86438fd1d7a50a957d7e3b996220

SHA1
f14b6600c03d838c12b2d496ea01d184a9f92611

SHA256
a9eecf0929c43dff3146e3d66f361684c7fb418b45330618b834550e1353bed0

SHA512
7a8640f5640dfee7f52c6448f63f5089519a97970dc35939378d036b08cb764c9ac4864e875b98baab70eab28df1cea465f9f9214438550ad20adb03baa8e514

Download Submit
memory/1536-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1536-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1536-2-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/3956-18-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3956-17-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download