f2aa2ee45f4bdcba36948c31d711a0548b9bda4d2cb1dc13e10ea647d02db924

Analysis

max time kernel
94s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 08:30

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General

Target

2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe
Size

49KB
MD5

2307d3404137ab608ebb384ac4efdc61
SHA1

77da5ec66c5e35a0831c40166e18f53c00be6a58
SHA256

f2aa2ee45f4bdcba36948c31d711a0548b9bda4d2cb1dc13e10ea647d02db924
SHA512

adeaff6719bffe834664ac7465bef6ba4b48f545c2ed31daeeb6ae352a6cff205d7273b27ba4e1e1ba252947f801dd2108f8b225679672079c34c94361493590
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatshz:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7m

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3508	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	2024-09-04_2307d3404137ab608ebb384ac4efdc61_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 4480 wrote to memory of 3508	4480	2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe	85
PID 4480 wrote to memory of 3508	4480	2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe	85
PID 4480 wrote to memory of 3508	4480	2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-04_2307d3404137ab608ebb384ac4efdc61_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- 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:3508

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
50KB

MD5
6bd9d2c085ab5962ee438f627b4cda05

SHA1
49232ddba7a6c1b023f853fddf0636108cdf96d5

SHA256
e8aa8f5644810f7e6553a4b62c2590d7fbe98186e52dd78eede00233d66ea077

SHA512
2c369f4cfe5fb11db27f6175d814843f3cf395dca93fc69b08a8b12fe80b83a4c1ddb25b390bd69946eec8bd1f2dda74b16066a6f47c00927ac8731e97b90a39

Download Submit
memory/3508-25-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/4480-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4480-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download