3bc4e9466d1f5a2dfdc8f6d9e59470c6812593ceb482dc377d1371df5af1b9ee

Analysis

max time kernel
94s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 13:26

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General

Target

2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe
Size

62KB
MD5

4805643fcc7eb120ee1a6ac4ce292c1b
SHA1

d6cd822d7a329fa129d96690c5aa66a36b26fcbc
SHA256

3bc4e9466d1f5a2dfdc8f6d9e59470c6812593ceb482dc377d1371df5af1b9ee
SHA512

d059680f277326346db83b669b4bd3a39a8cdad37224e0fd4264686cc338b09724e8050238d21c8b4d42ec691249c5ab3a5c2a39d9b1d66925d948e342bec7c9
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293io:aq7tdgI2MyzNORQtOflIwoHNV2XBFV77

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
696	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	2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_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 1424 wrote to memory of 696	1424	2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe	83
PID 1424 wrote to memory of 696	1424	2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe	83
PID 1424 wrote to memory of 696	1424	2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_4805643fcc7eb120ee1a6ac4ce292c1b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1424
- 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:696

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
63KB

MD5
61842083ee11ad8e747bdae6ee01bdfb

SHA1
d30d7fd474f451b93323cc18c6278812cc58e63c

SHA256
4242e48989db58f2a79d1f0b7013aa82e4b73b0e18fc5e3e5a5ca73188aa3b96

SHA512
6497de48499c51fc891391ccf8b3666f03650eb28223f0f82332a0c26e4b85ad56ec21567cb19f26cdfee3e13382834bea7eb2c0c6fbf233eb8ea7e209064a7a

Download Submit
memory/696-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1424-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1424-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1424-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download