Malware Analysis Report

2025-01-18 13:20

Sample ID 240613-dz674awenj
Target 2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker
SHA256 e74bf37d308bcd559c103a20cec5109fccce6d89d9e2801cbd001f157ab4d7b6
Tags
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e74bf37d308bcd559c103a20cec5109fccce6d89d9e2801cbd001f157ab4d7b6

Threat Level: Known bad

The file 2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:27

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:27

Reported

2024-06-13 03:30

Platform

win7-20240611-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\rewok.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\rewok.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 spinistry.com udp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp

Files

memory/2444-0-0x0000000000260000-0x0000000000266000-memory.dmp

memory/2444-8-0x0000000000260000-0x0000000000266000-memory.dmp

memory/2444-1-0x0000000000400000-0x0000000000406000-memory.dmp

\Users\Admin\AppData\Local\Temp\rewok.exe

MD5 15544dad88870de782e50f72f2668c98
SHA1 2a8998b9b5cd1c1e2b24bac4b54692d48004b201
SHA256 ecf42d35fbf8d5d445578f07128dbda429e5459e32cc3f2f2efb93b7d7aead96
SHA512 4d74cf144456e7a1696b02fee4907dda2814f0eb554bbb50675b0054ca30e4c254cd9f70e4053a499230edf846154995e468324b6578993cf93c021ca3ab0e82

memory/2104-16-0x00000000002E0000-0x00000000002E6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:27

Reported

2024-06-13 03:30

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\rewok.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_282e4eaeed2f9c6c631aac703477be8c_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\rewok.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp
US 8.8.8.8:53 spinistry.com udp

Files

memory/2344-0-0x0000000002250000-0x0000000002256000-memory.dmp

memory/2344-8-0x0000000002250000-0x0000000002256000-memory.dmp

memory/2344-1-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 15544dad88870de782e50f72f2668c98
SHA1 2a8998b9b5cd1c1e2b24bac4b54692d48004b201
SHA256 ecf42d35fbf8d5d445578f07128dbda429e5459e32cc3f2f2efb93b7d7aead96
SHA512 4d74cf144456e7a1696b02fee4907dda2814f0eb554bbb50675b0054ca30e4c254cd9f70e4053a499230edf846154995e468324b6578993cf93c021ca3ab0e82

memory/536-25-0x0000000002D60000-0x0000000002D66000-memory.dmp