Malware Analysis Report

2025-08-05 14:36

Sample ID 250702-x3vs1sgj5z
Target 2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex
SHA256 99b4ad7bf582e9427818ea1cc2011705d7587d75ccecf57f898b6d292dbe2f48
Tags
discovery
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

99b4ad7bf582e9427818ea1cc2011705d7587d75ccecf57f898b6d292dbe2f48

Threat Level: Shows suspicious behavior

The file 2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Checks computer location settings

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-07-02 19:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-02 19:23

Reported

2025-07-02 19:25

Platform

win10v2004-20250610-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2012121138-1878458325-808874697-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex.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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\misid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_09b356fc71fd2e5cc5d2304d0748e43a_cryptolocker_elex.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
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
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 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
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 c.pki.goog udp
GB 142.250.179.227:80 c.pki.goog tcp
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/5720-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

memory/5720-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/5720-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/5720-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

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

MD5 cab8794525e4ba364abc95d422d36ed3
SHA1 d8462b53ded4b3db56471e140b91d611a55fd220
SHA256 bcaf43e1838920df710042cadd141e9c29144427909e175c1021419b931fe337
SHA512 1d961b32b69ddadc992b33b2f163c72c9b0944d9ab0d18bc5c1113e59c263a7a4728e436f60d8943d13f3fce04fa53d54a17da0c22eefe8ca796a9d69deb5968

memory/5520-18-0x0000000000740000-0x0000000000746000-memory.dmp

memory/5520-25-0x0000000000690000-0x0000000000696000-memory.dmp

memory/5720-24-0x00000000004E0000-0x00000000004E3000-memory.dmp