Malware Analysis Report

2025-08-05 16:30

Sample ID 240611-dxf8wssdjb
Target 2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker
SHA256 9d608e774eaa07856d6e6f537308c98a635b0dd234cb920f2d1b1215df97f2b1
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

9d608e774eaa07856d6e6f537308c98a635b0dd234cb920f2d1b1215df97f2b1

Threat Level: Known bad

The file 2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-11 03:23

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

2024-06-11 03:23

Reported

2024-06-11 03:25

Platform

win7-20240220-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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\misid.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
IN 103.91.187.97:443 bestccc.com tcp
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IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 tcp
IN 103.91.187.97:443 tcp

Files

memory/2256-22-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 7f3e958ffb7bfd71422a928cc965e8f6
SHA1 1c8e99d6519c77fed0686c69492c97759a011e76
SHA256 d4618bceb19c0181461351cd716bb6b1eeb62dab82c134afe160d1111c9a76ef
SHA512 8cf192992e0482bc7c713725e4cf60f6f9f469e1d62775b8bc1c256322b0be4f02da036dfd0edc8bbe287477e7d030cf00d26455f89a46d69d0652845f3814c5

memory/2256-15-0x0000000000390000-0x0000000000396000-memory.dmp

memory/2872-2-0x0000000000600000-0x0000000000606000-memory.dmp

memory/2872-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2872-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 03:23

Reported

2024-06-11 03:25

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_022cdba5d462cb265e1ef40658c6a199_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/3220-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/3220-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/3220-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 7f3e958ffb7bfd71422a928cc965e8f6
SHA1 1c8e99d6519c77fed0686c69492c97759a011e76
SHA256 d4618bceb19c0181461351cd716bb6b1eeb62dab82c134afe160d1111c9a76ef
SHA512 8cf192992e0482bc7c713725e4cf60f6f9f469e1d62775b8bc1c256322b0be4f02da036dfd0edc8bbe287477e7d030cf00d26455f89a46d69d0652845f3814c5

memory/2712-17-0x0000000000650000-0x0000000000656000-memory.dmp

memory/2712-23-0x0000000000630000-0x0000000000636000-memory.dmp