Malware Analysis Report

2025-08-05 14:36

Sample ID 250702-x38pwagj7v
Target 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex
SHA256 b4e3181b33b2b9ca785b11107dc973e6c5c98a233149a0354d28fe36fbba61e5
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

b4e3181b33b2b9ca785b11107dc973e6c5c98a233149a0354d28fe36fbba61e5

Threat Level: Shows suspicious behavior

The file 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

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 19:26

Platform

win10v2004-20250619-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4097847965-469305640-2969917343-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2025-07-02_12604523bf210e6b6662e53b1164d6fa_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_12604523bf210e6b6662e53b1164d6fa_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_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_12604523bf210e6b6662e53b1164d6fa_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 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 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

Files

memory/5552-0-0x0000000002190000-0x0000000002196000-memory.dmp

memory/5552-1-0x0000000002190000-0x0000000002196000-memory.dmp

memory/5552-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

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

MD5 acb8fcf2b9ca74b6483378d342d49f65
SHA1 e3f61a7ba2a9de005b0a26a97815717377d377cc
SHA256 8997ff566761d5878cfb0266a9c814b44aae64acf1221dc0619357deaa3a0e3b
SHA512 31a72f6162825abc742cc02bc6f9609593aa912cdcf4efe97314747468a0c2d5e831dfcfe7e40f9080ae6e73525a0dd3c6bd66891aa4e1ceade11a02c43a1990

memory/3976-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/3976-23-0x00000000004D0000-0x00000000004D6000-memory.dmp