Malware Analysis Report

2025-08-10 12:15

Sample ID 240610-1z831stalj
Target ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562
SHA256 ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562
Tags
upx
score
7/10

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
7/10

SHA256

ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562

Threat Level: Shows suspicious behavior

The file ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx

UPX packed file

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 22:06

Signatures

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 22:06

Reported

2024-06-10 22:08

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe N/A

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe

"C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe"

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.programworkshop.com udp

Files

memory/228-0-0x0000000000320000-0x00000000003C0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

MD5 368332fca74f48697d842c5f4698ae1d
SHA1 0275153a1e62bd0eca0b02168895517ed66aac56
SHA256 3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59
SHA512 fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

memory/228-14-0x0000000000320000-0x00000000003C0000-memory.dmp

memory/228-15-0x0000000000320000-0x00000000003C0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 22:06

Reported

2024-06-10 22:08

Platform

win11-20240508-en

Max time kernel

78s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe"

Signatures

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe

"C:\Users\Admin\AppData\Local\Temp\ef3ab5616e8197c5c285b83cc5fea099f35fcb70298ba8630d6d87f113371562.exe"

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.programworkshop.com udp
US 52.111.229.43:443 tcp

Files

memory/3820-0-0x0000000000F20000-0x0000000000FC0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

MD5 368332fca74f48697d842c5f4698ae1d
SHA1 0275153a1e62bd0eca0b02168895517ed66aac56
SHA256 3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59
SHA512 fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

memory/3820-14-0x0000000000F20000-0x0000000000FC0000-memory.dmp

memory/3820-16-0x0000000000F20000-0x0000000000FC0000-memory.dmp