Malware Analysis Report

2025-01-18 00:02

Sample ID 240603-stwxhabh88
Target 2024-06-03_2005d568827f2ac7985ed23ade633041_cryptolocker
SHA256 ea097cd789ac1cbc66b4b74d8bd707e8e9cf1d9d7c8f2337495d23fafc692d74
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

ea097cd789ac1cbc66b4b74d8bd707e8e9cf1d9d7c8f2337495d23fafc692d74

Threat Level: Known bad

The file 2024-06-03_2005d568827f2ac7985ed23ade633041_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 15:25

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

2024-06-03 15:25

Reported

2024-06-03 15:28

Platform

win7-20240221-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_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\2024-06-03_2005d568827f2ac7985ed23ade633041_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_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/2184-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2184-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2184-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 7f406ceaced7ba45fc16c4efa71691c0
SHA1 761b565581502ca9d537e331b3eca62f80f9d7da
SHA256 56f69e2ccd3d7aa36c87130ccb186e7b7897653e9c6ee62d69f5e018743adf18
SHA512 9acfe9a05b844159354266c4640263bcfcb506e2586f5d97e75696e0952c3b029a62289d5b47a7dbbef592bb19a16c5583c325919e8a0aea2655380e1aada334

memory/3016-23-0x0000000000390000-0x0000000000396000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 15:25

Reported

2024-06-03 15:28

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_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\2024-06-03_2005d568827f2ac7985ed23ade633041_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_2005d568827f2ac7985ed23ade633041_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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa 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 8.8.8.8:53 152.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net 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/3168-0-0x0000000002010000-0x0000000002016000-memory.dmp

memory/3168-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/3168-8-0x0000000002010000-0x0000000002016000-memory.dmp

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

MD5 7f406ceaced7ba45fc16c4efa71691c0
SHA1 761b565581502ca9d537e331b3eca62f80f9d7da
SHA256 56f69e2ccd3d7aa36c87130ccb186e7b7897653e9c6ee62d69f5e018743adf18
SHA512 9acfe9a05b844159354266c4640263bcfcb506e2586f5d97e75696e0952c3b029a62289d5b47a7dbbef592bb19a16c5583c325919e8a0aea2655380e1aada334

memory/2648-24-0x00000000020D0000-0x00000000020D6000-memory.dmp