71bbee6d7444c9f2a14ab590d60d5c868b9e9c4dcd40d044f32b7fc5c85e83df

Analysis

max time kernel
94s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 02:38

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General

Target

2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe
Size

39KB
MD5

f4e5977c33799042b1102eb0ac46e5ba
SHA1

8e2cea7d94a1ee8db7f960051fa4df5970830baa
SHA256

71bbee6d7444c9f2a14ab590d60d5c868b9e9c4dcd40d044f32b7fc5c85e83df
SHA512

246d97848224bb5d0b3028a182bac191a83796521810f84c612278bfa46b97ede62471dc437b4db92cb3c338ac895a806a7f26378e275f64529a10e33ce1e996
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0UpaS:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XW

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1256	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	2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_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 5004 wrote to memory of 1256	5004	2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe	82
PID 5004 wrote to memory of 1256	5004	2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe	82
PID 5004 wrote to memory of 1256	5004	2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_f4e5977c33799042b1102eb0ac46e5ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- 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:1256

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
39KB

MD5
78e7392af91e8af2dc2d3795484b01c8

SHA1
ca44afb9f84eb4230e777cea1e761a414cde4497

SHA256
45d8f9513fee0109efed39b39e24b80bfea1a36417ae8d9b699d6ee0ba3d5274

SHA512
063b980b7a87a264d7b96a87390d7e1b4bcfb77e276edbf55e8df74f941a8d1cbfd4f6beb0d850051fb85f2ddcbfd4d8bd3092e19674a5ed50c611176a54a472

Download Submit
memory/1256-25-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/5004-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5004-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5004-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download