b779a5d7b27b9685a15d5e6ec04c832a2bf72bfdb579704eb47c8d86316cec06

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 07:38

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General

Target

2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe
Size

53KB
MD5

d8f98cff825d8efc646d78aa3ec4881e
SHA1

73070a817a7a715246276b72db0bd6153bf9975c
SHA256

b779a5d7b27b9685a15d5e6ec04c832a2bf72bfdb579704eb47c8d86316cec06
SHA512

b93693967bd9a8599611eb0917db564695f25824d8b6784799ae3e956699684db4c23eb0ac19ab5f432de73f23106698fcb581431c64992e95866e6c5f6f8c8f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccCGXlDq:V6a+pOtEvwDpjvDY

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	2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5076	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	2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_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 3584 wrote to memory of 5076	3584	2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe	82
PID 3584 wrote to memory of 5076	3584	2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe	82
PID 3584 wrote to memory of 5076	3584	2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_d8f98cff825d8efc646d78aa3ec4881e_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3584
- 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:5076

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\asih.exe

Filesize
53KB

MD5
dc6ff827dac772ee14d5df730fd7d7f3

SHA1
3b911a9348c362411bea871ae3cd39b3bcafeee1

SHA256
8cd57951c58d81b8f560f600c1b692f9c3634d306c959aa8f0080b76b3374a4e

SHA512
07513142650822cd32d37cbbc5b3483192d0bfeaf0f9e66f3f24c7e6c2b61f62647482263dc161348bb5534d5e5be96fe299c5a88ef02cc1e7076a54e7552ad6

Download Submit
memory/3584-0-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3584-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3584-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/5076-17-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/5076-18-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download