ce661c89ec871f469d314bfd3e77e4f5f7c2a88f250cd914bc96bf766aee6530

Analysis

max time kernel
95s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 05:34

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General

Target

2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe
Size

52KB
MD5

a8d6c085d583e46267c4d8fc9f5aba48
SHA1

40c302749fb707b4d2470335b33403fd4cfcd1d6
SHA256

ce661c89ec871f469d314bfd3e77e4f5f7c2a88f250cd914bc96bf766aee6530
SHA512

51ffd572b3b3b62bec739ea419f41a23a86af4b800f884e00a3c95e8496c40a1c86c3fa401934caa9996570549fdf9ac1ba738e68e576736397bb6e4da18b40e
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIXa6gp:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7z

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4964	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	2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_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 4252 wrote to memory of 4964	4252	2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe	85
PID 4252 wrote to memory of 4964	4252	2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe	85
PID 4252 wrote to memory of 4964	4252	2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_a8d6c085d583e46267c4d8fc9f5aba48_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- 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:4964

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
52KB

MD5
8b8897c5cd1af6d3536d479a350d8737

SHA1
fa9db8b9a5f17601427a950397ea56e9e5bf6db9

SHA256
8105baed7e924ccfdbdca27d27ba8c1870ad0a41cf028a8bf748feb70ab2d084

SHA512
0a57fe8017d45562dd657f154ad2d315f42715b4841c54c9bf382e38c9d826906eabcd85f668a6d7acfe1ead0a9b98674f1af41f6fc3039ea71922c72cf7140e

Download Submit
memory/4252-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4252-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4252-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4964-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download