5264dd9ba98045b738eba0bb4d229dad6d0ba78046fc0ddee581569fdf1b1250

Analysis

max time kernel
135s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 14:54

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General

Target

2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
Size

70KB
MD5

633c9f1236f4e0dc09e541b6741d8fca
SHA1

4ec58f1a731581d0e6f89159eda7b8471458d605
SHA256

5264dd9ba98045b738eba0bb4d229dad6d0ba78046fc0ddee581569fdf1b1250
SHA512

2605e4b69d4f3b22412a59ef17efc9aef38f9580051833b5b325d2a233c8cb4c1ec1524a4fd7c51314d568610cd8fdb371e5edfe62e38333cfa6fcfac0eab30a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEZ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
5028	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	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_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 4696 wrote to memory of 5028	4696	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	84
PID 4696 wrote to memory of 5028	4696	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	84
PID 4696 wrote to memory of 5028	4696	2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-01_633c9f1236f4e0dc09e541b6741d8fca_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4696
- 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:5028

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
70KB

MD5
4b533d501c21e65c8d0113f3dd68706a

SHA1
e4a4f08cf6fd9a09c901594b1a31b7639df85ea0

SHA256
d2dc983759ccedea2b1e82cbb14633bec8576446328e9c545c2a3f54c1af29a0

SHA512
8ebd326e85a502466e2406bdcc517b5713a18422154ff3ba1745eb19918a812a1d83cd19bdf11a9a4897db0b535face9d8738f52bd3fe0d99bb8377b47d3b701

Download Submit
memory/4696-0-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4696-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4696-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5028-25-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download