4f15d8a23e4425ab555addf8bfadaad0ef9e768d8cd27b74efbc30923fd7962b

Analysis

max time kernel
77s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/08/2024, 18:07

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General

Target

2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe
Size

29KB
MD5

8bb81d1818d04ffd54839a4658eef3be
SHA1

b0d733d56f3a0f34c56080ec47a6c36f1eb9188b
SHA256

4f15d8a23e4425ab555addf8bfadaad0ef9e768d8cd27b74efbc30923fd7962b
SHA512

3d8d8c899454ad26c3758e3fed38c4bfc5f2c2dc2b69148db042c0b09e1adf1ed97533326d6dc3df1af8effc875c9680556186b65ecba327064738c4a3e5b122
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGuZt:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xw

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
840	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	2024-08-29_8bb81d1818d04ffd54839a4658eef3be_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 2416 wrote to memory of 840	2416	2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe	89
PID 2416 wrote to memory of 840	2416	2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe	89
PID 2416 wrote to memory of 840	2416	2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-29_8bb81d1818d04ffd54839a4658eef3be_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- 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:840

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
29KB

MD5
2939d530d8b814eb6f28fd63d8c9047e

SHA1
192e00d1d9dc7b7ee8de79d242243d788c5bb0ef

SHA256
a88162a78d9f5dd019c7e792430a5b7ae8b6d9209a89b78c1bdb29f599eacc52

SHA512
e9ef47e0d7f522d822645e0fdc1c5e36a025faee8cd9b4246c9d9716ca33fc50c3ca42e0b910461b0431907a37683b0c45b7a396f311151784f9906badd57ad4

Download Submit
memory/2416-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2416-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2416-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download