a05003f70dfe9535266e2852dfb4d4a7962defc1ca7263ac10782a1ceea28c53

Analysis

max time kernel
148s
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
07-09-2024 01:23

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General

Target

2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe
Size

47KB
MD5

7d3ce4bb6b99c38387f74febae71c624
SHA1

b6c27e6c24b330f272b51674ace01d3614fe6907
SHA256

a05003f70dfe9535266e2852dfb4d4a7962defc1ca7263ac10782a1ceea28c53
SHA512

0cbabdf44a885c7484ab8e5694980db029c46cf83e44eb3ca806799fdbf90cfecd651e0d1c459f2c48a11be362d3e845d6272fbbf265a2bc672d071047ea4d23
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPlA1:P6QFElP6k+MRQMOtEvwDpjBQpVX8A1

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2700	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	2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 2700	4672	2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe	86
PID 4672 wrote to memory of 2700	4672	2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe	86
PID 4672 wrote to memory of 2700	4672	2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_7d3ce4bb6b99c38387f74febae71c624_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- 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:2700

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
47KB

MD5
95d01597720732e34b48402fb1a09be3

SHA1
fc3a2ad2587fc7c1e243a4ba9273380d89b16b9c

SHA256
0023c0b33f696d09df78a5c31b0ea45667385364c1c00f8ff3737923b3265aed

SHA512
a0f08626b0830b4834e6aefeaa54bdebfa485e21f55a084a745003031bf5ba977a30e3697a68a29dadbf395468fdac2ed95c2a49dc661bb78aa1f9ed87870e9c

Download Submit
memory/2700-19-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2700-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2700-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4672-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4672-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/4672-2-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/4672-3-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4672-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download