Malware Analysis Report

2024-10-10 10:00

Sample ID 240622-g3gndsvdkq
Target Roblox Player.rar
SHA256 3664113f7ace4433828dbc22df3592b3dc46eadfb1448868af8ff0803afd9041
Tags
umbral
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 Overview

score
10/10

SHA256

3664113f7ace4433828dbc22df3592b3dc46eadfb1448868af8ff0803afd9041

Threat Level: Known bad

The file Roblox Player.rar was found to be: Known bad.

Malicious Activity Summary

umbral

Detect Umbral payload

Umbral family

Enumerates physical storage devices

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-22 06:19

Signatures

Detect Umbral payload

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

Umbral family

umbral

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 06:19

Reported

2024-06-22 06:20

Platform

win7-20240508-en

Max time kernel

4s

Max time network

0s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\Roblox Player.rar"

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\Roblox Player.rar"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Roblox Player.rar

Network

N/A

Files

N/A