d303bf41e8a124f876bd5d58f17c532d89aafc15be60cc06dd26dd1f18e515fe

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:24

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General

Target

2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe
Size

45KB
MD5

43c5150c6d6825cac269ba0cb824806b
SHA1

354fc6f7bb18d0a2320d1ea27fb76371797250cc
SHA256

d303bf41e8a124f876bd5d58f17c532d89aafc15be60cc06dd26dd1f18e515fe
SHA512

d112f490e22379eadfc968a2e3f0d58b664f61d500b365e92cbde138f20a156f6a05cf1d2ada35b6b4b2b6ef5aeed391e191b3dbb16323b82633cb03ecb56d78
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55Q:X6QFElP6n+gJQMOtEvwDpjB0GIWQ

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

Processes:

2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid	Process
4580	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

Processes:

2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exeasih.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe

description	pid	Process	procid_target
PID 3544 wrote to memory of 4580	3544	2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe	85
PID 3544 wrote to memory of 4580	3544	2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe	85
PID 3544 wrote to memory of 4580	3544	2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_43c5150c6d6825cac269ba0cb824806b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3544
- 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:4580

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
45KB

MD5
8a53b5cd152b66b733737c7bef358d83

SHA1
44009f4fc90cd7724a7d50cd30c31ab25e8d68b3

SHA256
e8ca784bd06f55b0fb9c2031ffbb016cda74c059d7ff6bf7b029b5caf8b7a70e

SHA512
dcd11ca64dfd6d738ff100f4834a238cb9ea13393e0bf4ddbf128cc6f8c3f2ce4bd623ba89ed90c7c3f6f5ca2060829ee49433f8f8a0d8e668bc35f04e9a968e

Download Submit
memory/3544-0-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3544-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3544-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/4580-18-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4580-17-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download