e4484c28821977f905da85cb69c646cc6ff71498916ac6e0078e7cbfbf12237a

Analysis

max time kernel
150s
max time network
154s
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, 05:25

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General

Target

2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe
Size

56KB
MD5

7607bc049e4a94020fcde4334571fd65
SHA1

f97400b193176c5605d2aef1da0f51ae4643de73
SHA256

e4484c28821977f905da85cb69c646cc6ff71498916ac6e0078e7cbfbf12237a
SHA512

b6055c94672f31a8de477be06df78ce151f6682bd18a12b3a593609c1c652597b1a21d72a2961184e980a2128ab08830e8712800c32a5bfe5541db57f7071630
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6ExQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7X

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1576	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_7607bc049e4a94020fcde4334571fd65_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 3880 wrote to memory of 1576	3880	2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe	84
PID 3880 wrote to memory of 1576	3880	2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe	84
PID 3880 wrote to memory of 1576	3880	2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_7607bc049e4a94020fcde4334571fd65_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3880
- 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:1576

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
56KB

MD5
48b49a1defa9a351be06db9f96a076aa

SHA1
dc4ac9bcd11e542a26399a30ef2a112fa0286e94

SHA256
0c2add22633ac80e4db04878dc03d1e1b5f6739933d889f9b3b0ceaed2a44066

SHA512
ce73a6dd80d094e4f08fbc400c8ac6af2eb6dcc27bcf47731b6cbd262dca70d110e55f41e28b24341aa576759b425e51ced3f1aeb296a76c4c1149163e2f71ca

Download Submit
memory/1576-19-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/3880-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3880-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3880-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download