Malware Analysis Report

2024-12-07 14:02

Sample ID 241118-wzje5sxlfj
Target Client-built.exe
SHA256 0e8e372dea375087a4a50e6698f1e5d1ea8625338dc8509dc7e3ee0004fb0378
Tags
discordrat persistence rat rootkit stealer
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0e8e372dea375087a4a50e6698f1e5d1ea8625338dc8509dc7e3ee0004fb0378

Threat Level: Known bad

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

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discordrat family

Discord RAT

Downloads MZ/PE file

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Uses Task Scheduler COM API

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Scheduled Task/Job: Scheduled Task

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-18 18:21

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-18 18:21

Reported

2024-11-18 18:24

Platform

win7-20240903-en

Max time kernel

122s

Max time network

123s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Discordrat family

discordrat

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2348 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2348 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2348 wrote to memory of 2084 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 2348 -s 596

Network

N/A

Files

memory/2348-0-0x000007FEF5AC3000-0x000007FEF5AC4000-memory.dmp

memory/2348-1-0x000000013F710000-0x000000013F728000-memory.dmp

memory/2348-2-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

memory/2348-3-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-18 18:21

Reported

2024-11-18 18:24

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

136s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Discordrat family

discordrat

Downloads MZ/PE file

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\SCHTASKS.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1416 wrote to memory of 3820 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\SYSTEM32\SCHTASKS.exe
PID 1416 wrote to memory of 3820 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\SYSTEM32\SCHTASKS.exe

Uses Task Scheduler COM API

persistence

Processes

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

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

C:\Windows\SYSTEM32\SCHTASKS.exe

"SCHTASKS.exe" /create /tn "$77Client-built.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Client-built.exe'" /sc onlogon /rl HIGHEST

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.134.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.134.159.162.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 geolocation-db.com udp
DE 159.89.102.253:443 geolocation-db.com tcp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 253.102.89.159.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 162.159.138.232:443 discord.com tcp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.109.133:443 raw.githubusercontent.com tcp
US 162.159.138.232:443 discord.com tcp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 133.109.199.185.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/1416-0-0x00007FFA287E3000-0x00007FFA287E5000-memory.dmp

memory/1416-1-0x000001C1378A0000-0x000001C1378B8000-memory.dmp

memory/1416-2-0x000001C151FD0000-0x000001C152192000-memory.dmp

memory/1416-3-0x00007FFA287E0000-0x00007FFA292A1000-memory.dmp

memory/1416-4-0x000001C1527D0000-0x000001C152CF8000-memory.dmp

memory/1416-5-0x00007FFA287E0000-0x00007FFA292A1000-memory.dmp

memory/1416-6-0x000001C137D20000-0x000001C137D2E000-memory.dmp

memory/1416-8-0x00007FFA287E0000-0x00007FFA292A1000-memory.dmp