Malware Analysis Report

2024-09-11 09:26

Sample ID 240526-x1p5rahg39
Target Client-built.exe
SHA256 b1017a29cab062a104a5b946fbc23057738e7227289e1cf115cf82d9257e17b1
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

b1017a29cab062a104a5b946fbc23057738e7227289e1cf115cf82d9257e17b1

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

2024-05-26 19:19

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-26 19:19

Reported

2024-05-26 19:22

Platform

win7-20240221-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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2868 wrote to memory of 2192 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2868 wrote to memory of 2192 N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe C:\Windows\system32\WerFault.exe
PID 2868 wrote to memory of 2192 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 2868 -s 596

Network

N/A

Files

memory/2868-0-0x000007FEF5923000-0x000007FEF5924000-memory.dmp

memory/2868-1-0x000000013F4A0000-0x000000013F4B8000-memory.dmp

memory/2868-2-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

memory/2868-3-0x000007FEF5923000-0x000007FEF5924000-memory.dmp

memory/2868-4-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-26 19:19

Reported

2024-05-26 19:22

Platform

win10v2004-20240508-en

Max time kernel

134s

Max time network

130s

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 162.159.135.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 234.135.159.162.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/3688-0-0x000001F079D50000-0x000001F079D68000-memory.dmp

memory/3688-1-0x00007FF8AF063000-0x00007FF8AF065000-memory.dmp

memory/3688-2-0x000001F07C6B0000-0x000001F07C872000-memory.dmp

memory/3688-3-0x00007FF8AF060000-0x00007FF8AFB21000-memory.dmp

memory/3688-4-0x000001F07CDB0000-0x000001F07D2D8000-memory.dmp

memory/3688-5-0x00007FF8AF060000-0x00007FF8AFB21000-memory.dmp