1d5f4186ee81c0783dc2a2f11a6a1bb892de9c0dbddaeacec307733ff29c6715

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 04:33

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General

Target

2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe
Size

68KB
MD5

f5b8266ef3e2eae3aaf9362334a996b9
SHA1

db557aaef87bc1537640c0f35410f36d801c0863
SHA256

1d5f4186ee81c0783dc2a2f11a6a1bb892de9c0dbddaeacec307733ff29c6715
SHA512

8b81d503fb7b4d153c33dddc492eddf02607afca8758bcb8f1dbcc6c00d7cd3ebb9a1a2267bc5ae72fcf32a08acdb61c2e350a9caaa79f0e710d6c384dc7f162
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299N2UC:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7O

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4556	hurok.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	2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 4556	3512	2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe	83
PID 3512 wrote to memory of 4556	3512	2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe	83
PID 3512 wrote to memory of 4556	3512	2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_f5b8266ef3e2eae3aaf9362334a996b9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4556

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\hurok.exe

Filesize
68KB

MD5
5a92e4f60a9537d5b9b5401a9fa474b2

SHA1
eb0c97815a54f1c2b06605517b973549631332ec

SHA256
757bdf1716d6d17ad52f7d21b945aefa18f5e96602ab742d84a2d4932b723ff8

SHA512
66bdb31f515242caafe755abff5f5199aaaa72374a3829c9378e3e9ab1315529c0ddafbf4ff41befb2d1caad6369fcaaec453a5a0dcf8b2abc34cc8f4982d9de

Download Submit
memory/3512-0-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3512-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3512-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4556-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download