Malware Analysis Report

2024-12-07 13:44

Sample ID 241116-bs6a4sxard
Target release.zip
SHA256 c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97
Tags
discordrat persistence rat rootkit stealer discovery
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

Threat Level: Known bad

The file release.zip was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer discovery

Discord RAT

Discordrat family

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-16 01:25

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win7-20240903-en

Max time kernel

119s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Discordrat family

discordrat

Processes

C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2552 -s 596

Network

N/A

Files

memory/2552-0-0x000007FEF6313000-0x000007FEF6314000-memory.dmp

memory/2552-1-0x000000013F3D0000-0x000000013F3E8000-memory.dmp

memory/2552-2-0x000007FEF6310000-0x000007FEF6CFC000-memory.dmp

memory/2552-3-0x000007FEF6313000-0x000007FEF6314000-memory.dmp

memory/2552-4-0x000007FEF6310000-0x000007FEF6CFC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Discordrat family

discordrat

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 162.159.133.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 234.133.159.162.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 139.92.23.2.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 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2180-0-0x00007FFDEF4D3000-0x00007FFDEF4D5000-memory.dmp

memory/2180-1-0x00000243A9650000-0x00000243A9668000-memory.dmp

memory/2180-2-0x00000243C3DA0000-0x00000243C3F62000-memory.dmp

memory/2180-3-0x00007FFDEF4D0000-0x00007FFDEFF91000-memory.dmp

memory/2180-4-0x00000243C44A0000-0x00000243C49C8000-memory.dmp

memory/2180-5-0x00007FFDEF4D0000-0x00007FFDEFF91000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win7-20240903-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\builder.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\builder.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\builder.exe

"C:\Users\Admin\AppData\Local\Temp\builder.exe"

Network

N/A

Files

memory/2384-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

memory/2384-1-0x00000000010B0000-0x00000000010B8000-memory.dmp

memory/2384-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

memory/2384-3-0x00000000740CE000-0x00000000740CF000-memory.dmp

memory/2384-4-0x00000000740C0000-0x00000000747AE000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\builder.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\builder.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\builder.exe

"C:\Users\Admin\AppData\Local\Temp\builder.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/1116-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

memory/1116-1-0x0000000000460000-0x0000000000468000-memory.dmp

memory/1116-2-0x0000000005470000-0x0000000005A14000-memory.dmp

memory/1116-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp

memory/1116-4-0x0000000004E70000-0x0000000004E7A000-memory.dmp

memory/1116-5-0x0000000074CD0000-0x0000000075480000-memory.dmp

memory/1116-6-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

memory/1116-7-0x0000000074CD0000-0x0000000075480000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win7-20240903-en

Max time kernel

119s

Max time network

125s

Command Line

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

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

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

Network

N/A

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-11-16 01:25

Reported

2024-11-16 01:28

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

Command Line

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

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A