Malware Analysis Report

2024-09-11 09:35

Sample ID 240528-t14rcsch97
Target Client-built.exe
SHA256 d82bc37ca66a2c6b78dcf7934a818d3d7692890fffe98104f30e71d9f0875e73
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

d82bc37ca66a2c6b78dcf7934a818d3d7692890fffe98104f30e71d9f0875e73

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

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-28 16:32

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-28 16:32

Reported

2024-05-29 02:49

Platform

win7-20240419-en

Max time kernel

838s

Max time network

839s

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 2256 wrote to memory of 2028 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2256 wrote to memory of 2028 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2256 wrote to memory of 2028 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 2256 -s 596

Network

N/A

Files

memory/2256-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

memory/2256-1-0x000000013F070000-0x000000013F088000-memory.dmp

memory/2256-2-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

memory/2256-3-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-28 16:32

Reported

2024-05-29 02:49

Platform

win10v2004-20240508-en

Max time kernel

1195s

Max time network

1201s

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"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3812,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4244 /prefetch:8

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4040,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=5064 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.133.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 234.133.159.162.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp

Files

memory/4712-0-0x00007FFCA8693000-0x00007FFCA8695000-memory.dmp

memory/4712-1-0x0000019D216C0000-0x0000019D216D8000-memory.dmp

memory/4712-2-0x0000019D3BD40000-0x0000019D3BF02000-memory.dmp

memory/4712-3-0x00007FFCA8690000-0x00007FFCA9151000-memory.dmp

memory/4712-4-0x0000019D3C540000-0x0000019D3CA68000-memory.dmp

memory/4712-5-0x00007FFCA8693000-0x00007FFCA8695000-memory.dmp

memory/4712-6-0x00007FFCA8690000-0x00007FFCA9151000-memory.dmp