def91c584cdea53d4047d20adde83f500c5cfe3524384823eb959e848ae6d9f4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 06:26

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General

Target

2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe
Size

44KB
MD5

390c3165006182d68d0307464f98b4b0
SHA1

b1e03efa1be57d86e49648fa6cc948ef31745ad5
SHA256

def91c584cdea53d4047d20adde83f500c5cfe3524384823eb959e848ae6d9f4
SHA512

b2361a26fd8bbbdbccc3c6d3a8e21e1825b821ea516a86d6ae48e170c62dbd0f205dfafd3a12f3a98df0c8057835431f5eeaf1b19176101f43621c37ac597910
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/95WJo:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDFF

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	2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
868	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	2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 868	1960	2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe	85
PID 1960 wrote to memory of 868	1960	2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe	85
PID 1960 wrote to memory of 868	1960	2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-23_390c3165006182d68d0307464f98b4b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1960
- 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:868

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
44KB

MD5
4c6bf366cdc63cfa699c174e2c219022

SHA1
7528e3e821e72b7ab421eefb7b14328471aa9e64

SHA256
0bb3d313f49b6a472fec0797766bfa034e75c9be71b4ec97e1cd3ef8cea7c293

SHA512
5e9be37cf2ab68071179b3fc06b46add52a992eb6cb9010f1e0687fa7fe836f41e1488cd845591877c518caec3edcf49be280c1bd3deeff097f1b11e2389d904

Download Submit
memory/1960-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1960-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1960-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download