Malware Analysis Report

2024-09-11 09:07

Sample ID 240628-yr991atdlp
Target Client-built.exe
SHA256 85a287edb6eeb66eeada945ff71c946a76171be92244071c07d0ac5553d96cf2
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
10/10

SHA256

85a287edb6eeb66eeada945ff71c946a76171be92244071c07d0ac5553d96cf2

Threat Level: Known bad

The file Client-built.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

Discordrat family

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-28 20:02

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 20:02

Reported

2024-06-28 20:10

Platform

win7-20240611-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2112 wrote to memory of 892 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2112 wrote to memory of 892 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2112 wrote to memory of 892 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Client-built.exe

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2112 -s 596

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

N/A

Files

memory/2112-0-0x000007FEF4D53000-0x000007FEF4D54000-memory.dmp

memory/2112-1-0x000000013F930000-0x000000013F948000-memory.dmp

memory/2112-2-0x000007FEF4D50000-0x000007FEF573C000-memory.dmp

memory/2112-3-0x000007FEF4D53000-0x000007FEF4D54000-memory.dmp

memory/2112-4-0x000007FEF4D50000-0x000007FEF573C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 20:02

Reported

2024-06-28 20:09

Platform

win10v2004-20240508-en

Max time kernel

68s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Client-built.exe

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/4384-0-0x000001847BEB0000-0x000001847BEC8000-memory.dmp

memory/4384-1-0x00007FF947473000-0x00007FF947475000-memory.dmp

memory/4384-2-0x000001847E500000-0x000001847E6C2000-memory.dmp

memory/4384-3-0x00007FF947470000-0x00007FF947F31000-memory.dmp

memory/4384-4-0x00007FF947470000-0x00007FF947F31000-memory.dmp