f61955ebaf3340f0640cfc27f8025e6a26f422cb2c4c8e858059df7b48a9e790

Analysis

max time kernel
97s
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
29-09-2024 08:37

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General

Target

2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe
Size

56KB
MD5

992dcaf571f788a2642da5a5e66ebf17
SHA1

54aeba5fcec04808e26a922a2bf48ca96863a7e0
SHA256

f61955ebaf3340f0640cfc27f8025e6a26f422cb2c4c8e858059df7b48a9e790
SHA512

1c8f9748d9a4c16899ba63a554ada2b468ce2fbe97e4ec3735d85cfee851ae16d1297fa0c83135bfb36b076020122d2a3aa64df5dd0ad7d93b7bd6b0313370e5
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EhKD: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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	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	2024-09-29_992dcaf571f788a2642da5a5e66ebf17_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 3116 wrote to memory of 1488	3116	2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe	82
PID 3116 wrote to memory of 1488	3116	2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe	82
PID 3116 wrote to memory of 1488	3116	2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_992dcaf571f788a2642da5a5e66ebf17_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116
- 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:1488

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
6523b0bbc757cc69cd08e1e5c3ad533a

SHA1
140208b64664eed231912eee0dbab9f873edf219

SHA256
066404df393791b6e6109d8e90472ab0b30b1a489a6b8ca6ce57252ea2aa0600

SHA512
c8b14e494b683db38617d1ba65df7e5998aa2f9d0c2eaabf8239c0c2129cf4fd001dc9ccc1d0a9c77b3ba7ee6db4af9181c77f32a66de9d16f21236fb9088230

Download Submit
memory/1488-25-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/3116-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3116-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3116-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download