dd34cd5bdacbb0065195fe43a0dd31f7b240b1af447f2d9509371ebadaa2d0af

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 01:41

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General

Target

2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe
Size

46KB
MD5

1b7186aa72affcef37a5a7862fee5e0b
SHA1

fca945c5203787baaf0775d65c42c5d52b4940a9
SHA256

dd34cd5bdacbb0065195fe43a0dd31f7b240b1af447f2d9509371ebadaa2d0af
SHA512

951ef4462ed62348038c33975e0c221d735063e1efb185fbbdde3c376fe6e09a7052fcc0b3336fed9258f3c5204a3d67e0cfe67ea3d2c35f395b7e2312859256
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zM:bF/y2lFizbR9XwzM

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1648	rewok.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	2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1648	1680	2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe	82
PID 1680 wrote to memory of 1648	1680	2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe	82
PID 1680 wrote to memory of 1648	1680	2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1648

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\rewok.exe

Filesize
46KB

MD5
a54d0120ab0170bfb366669729a85d00

SHA1
cf18e8010741ca558c34be97a21572b93a5d3542

SHA256
228843da2cb7030b0110504fafea2d91c3b454353b4876d63e3d8b950e158199

SHA512
6cf58e76584443c78a231132046110b19250d3fb77606aa492a773075f6524812596aeaefa43a656b72f59bb88e95fa648abd3d708f00715f4875a1c1cec5bf2

Download Submit
memory/1648-25-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1680-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1680-1-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1680-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download