Malware Analysis Report

2025-08-10 19:49

Sample ID 250702-xj4ltazvgz
Target 2025-07-02_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex
SHA256 b012da4b935e42099d25b0e075a9bf000bd8d7562c227c27262471219d02f17c
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

b012da4b935e42099d25b0e075a9bf000bd8d7562c227c27262471219d02f17c

Threat Level: Shows suspicious behavior

The file 2025-07-02_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-07-02 18:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-07-02 18:53

Reported

2025-07-02 18:56

Platform

win10v2004-20250502-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3951986358-4006919840-1009690842-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2025-07-02_e738c388b6a93103b33cf92a34dc0eca_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_e738c388b6a93103b33cf92a34dc0eca_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_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e738c388b6a93103b33cf92a34dc0eca_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 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
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
US 8.8.8.8:53 bestccc.com udp

Files

memory/1356-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1356-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/1356-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/1356-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

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

MD5 c2de5d5aee1863853a262fcb5c0c0899
SHA1 ccf985a9e44851dd1a71dc314cb2e7a3e61bcffe
SHA256 67e4bce5f9f7a69fb550e00e53d003ba0a815fa804cda02d021e5fb19f0705e5
SHA512 8085b9e709835ecc1d53d889e5f917650ab5c540b73b3077c4e07689e06ba547ba7f223e536779e0a916d4a06f8f3040675adb0830d7dc4cc3d358bed114bbc3

memory/1356-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/5988-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/5988-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/5988-27-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-07-02 18:53

Reported

2025-07-02 18:56

Platform

win11-20250619-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex.exe"

Signatures

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_e738c388b6a93103b33cf92a34dc0eca_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_e738c388b6a93103b33cf92a34dc0eca_cryptolocker_elex.exe

"C:\Users\Admin\AppData\Local\Temp\2025-07-02_e738c388b6a93103b33cf92a34dc0eca_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 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
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/1408-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1408-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

memory/1408-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

memory/1408-3-0x0000000000710000-0x0000000000716000-memory.dmp

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

MD5 c2de5d5aee1863853a262fcb5c0c0899
SHA1 ccf985a9e44851dd1a71dc314cb2e7a3e61bcffe
SHA256 67e4bce5f9f7a69fb550e00e53d003ba0a815fa804cda02d021e5fb19f0705e5
SHA512 8085b9e709835ecc1d53d889e5f917650ab5c540b73b3077c4e07689e06ba547ba7f223e536779e0a916d4a06f8f3040675adb0830d7dc4cc3d358bed114bbc3

memory/1408-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/656-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

memory/656-20-0x0000000002200000-0x0000000002206000-memory.dmp

memory/656-26-0x0000000000500000-0x000000000050F000-memory.dmp