Malware Analysis Report

2024-11-16 13:03

Sample ID 240910-kt25hsvgrj
Target release.zip
SHA256 e70d13c5cc084cf5dab68b96b26540995bd1d75932c1cc24e1f81021ed85bfa1
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e70d13c5cc084cf5dab68b96b26540995bd1d75932c1cc24e1f81021ed85bfa1

Threat Level: Known bad

The file release.zip 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

N/A

Analysis: static1

Detonation Overview

Reported

2024-09-10 08:54

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral4

Detonation Overview

Submitted

2024-09-10 08:54

Reported

2024-09-10 08:57

Platform

win10v2004-20240802-en

Max time kernel

136s

Max time network

139s

Command Line

rundll32.exe "C:\Users\Admin\AppData\Local\Temp\dnlib - Copy.dll",#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe "C:\Users\Admin\AppData\Local\Temp\dnlib - Copy.dll",#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-10 08:54

Reported

2024-09-10 08:57

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

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 2616 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2616 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2616 wrote to memory of 2632 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 2616 -s 596

Network

N/A

Files

memory/2616-0-0x000007FEF4E33000-0x000007FEF4E34000-memory.dmp

memory/2616-1-0x000000013F8F0000-0x000000013F908000-memory.dmp

memory/2616-2-0x000007FEF4E30000-0x000007FEF581C000-memory.dmp

memory/2616-3-0x000007FEF4E33000-0x000007FEF4E34000-memory.dmp

memory/2616-4-0x000007FEF4E30000-0x000007FEF581C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-10 08:54

Reported

2024-09-10 09:02

Platform

win10v2004-20240802-en

Max time kernel

430s

Max time network

434s

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:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.136.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 234.136.159.162.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

memory/2688-0-0x00007FF8F62D3000-0x00007FF8F62D5000-memory.dmp

memory/2688-1-0x000001F2ECC30000-0x000001F2ECC48000-memory.dmp

memory/2688-2-0x000001F2EF320000-0x000001F2EF4E2000-memory.dmp

memory/2688-3-0x00007FF8F62D0000-0x00007FF8F6D91000-memory.dmp

memory/2688-4-0x000001F2EFA20000-0x000001F2EFF48000-memory.dmp

memory/2688-5-0x00007FF8F62D3000-0x00007FF8F62D5000-memory.dmp

memory/2688-6-0x00007FF8F62D0000-0x00007FF8F6D91000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-09-10 08:54

Reported

2024-09-10 08:57

Platform

win7-20240903-en

Max time kernel

118s

Max time network

120s

Command Line

rundll32.exe "C:\Users\Admin\AppData\Local\Temp\dnlib - Copy.dll",#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe "C:\Users\Admin\AppData\Local\Temp\dnlib - Copy.dll",#1

Network

N/A

Files

N/A