d3685ada73766f7d8c837c4389837c53564e60b19a69c403000562eef1683a6f

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-10-2024 02:37

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General

Target

2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe
Size

46KB
MD5

557bb04876faf0c3eb42bf1813d3f05b
SHA1

a16c6f730841ef84f7c1fcaa74ddf10af0819218
SHA256

d3685ada73766f7d8c837c4389837c53564e60b19a69c403000562eef1683a6f
SHA512

30e43a70eed8f5965a78fed84824e0e3a3e5dfa14c41a2bbc5b37a808d29a1becf4ae95b5cd0d1d0abe7a21dc805066ff4de1faf94d6e9441687367b365f21b7
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zN:bF/y2lFizbR9XwzN

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1608	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	2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_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 2876 wrote to memory of 1608	2876	2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe	85
PID 2876 wrote to memory of 1608	2876	2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe	85
PID 2876 wrote to memory of 1608	2876	2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_557bb04876faf0c3eb42bf1813d3f05b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:1608

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\rewok.exe

Filesize
46KB

MD5
1931c57f75911cb2b2b353c48ca5eb5e

SHA1
94dce4b2eedf0f39fbcfcfe5efd398114941695c

SHA256
1e7888e00b518827550ea59c2ef424c24e3db863a47030f0ceccfee4c60e4223

SHA512
6b7d32f0ebbec2eb791afa5984d51d3bc1819a312fc92cc58447e062bfca0b4a21c372457b241639daaa35c14e746cd5ca55006673b3f147aa5b8ec4cae69862

Download Submit
memory/1608-25-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/2876-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2876-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download