Malware Analysis Report

2024-11-16 13:03

Sample ID 240909-1z6b5asern
Target release (1).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 Overview

score
10/10

SHA256

c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

Threat Level: Known bad

The file release (1).zip was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer discovery

Discordrat family

Discord RAT

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-09 22:06

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

2024-09-09 22:06

Reported

2024-09-09 22:08

Platform

win11-20240802-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Release\Discord rat.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\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 162.159.136.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.136.159.162.in-addr.arpa udp

Files

memory/1044-0-0x00007FFAA5D73000-0x00007FFAA5D75000-memory.dmp

memory/1044-1-0x00000283D9610000-0x00000283D9628000-memory.dmp

memory/1044-2-0x00000283F3C60000-0x00000283F3E22000-memory.dmp

memory/1044-3-0x00007FFAA5D70000-0x00007FFAA6832000-memory.dmp

memory/1044-4-0x00000283F5030000-0x00000283F5558000-memory.dmp

memory/1044-5-0x00007FFAA5D73000-0x00007FFAA5D75000-memory.dmp

memory/1044-6-0x00007FFAA5D70000-0x00007FFAA6832000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 22:06

Reported

2024-09-09 22:07

Platform

win11-20240802-en

Max time kernel

80s

Max time network

82s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

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

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\builder.exe

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

C:\Windows\System32\rundll32.exe

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

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

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

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 gateway.discord.gg udp
US 162.159.135.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.135.159.162.in-addr.arpa udp
GB 2.18.66.65:443 tcp
US 52.168.112.67:443 browser.pipe.aria.microsoft.com tcp
GB 88.221.135.42:443 r.bing.com tcp
GB 88.221.135.42:443 r.bing.com tcp
GB 88.221.135.42:443 r.bing.com tcp
GB 88.221.135.42:443 r.bing.com tcp
GB 88.221.135.42:443 r.bing.com tcp
GB 88.221.135.42:443 r.bing.com tcp
N/A 52.111.236.22:443 tcp

Files

memory/4404-0-0x000000007504E000-0x000000007504F000-memory.dmp

memory/4404-1-0x0000000000520000-0x0000000000528000-memory.dmp

memory/4404-2-0x00000000055B0000-0x0000000005B56000-memory.dmp

memory/4404-3-0x0000000005000000-0x0000000005092000-memory.dmp

memory/4404-4-0x0000000075040000-0x00000000757F1000-memory.dmp

memory/4404-5-0x0000000004FE0000-0x0000000004FEA000-memory.dmp

memory/4404-6-0x000000007504E000-0x000000007504F000-memory.dmp

memory/4404-7-0x0000000075040000-0x00000000757F1000-memory.dmp

memory/1680-8-0x00007FFEFED93000-0x00007FFEFED95000-memory.dmp

memory/1680-9-0x00000209E8B60000-0x00000209E8B78000-memory.dmp

memory/1680-10-0x00000209EB1A0000-0x00000209EB362000-memory.dmp

memory/1680-11-0x00007FFEFED90000-0x00007FFEFF852000-memory.dmp

memory/1680-12-0x00000209EC420000-0x00000209EC948000-memory.dmp

memory/1680-13-0x00007FFEFED93000-0x00007FFEFED95000-memory.dmp

memory/1680-14-0x00007FFEFED90000-0x00007FFEFF852000-memory.dmp

memory/4404-15-0x0000000007A00000-0x0000000007B22000-memory.dmp

memory/4404-18-0x0000000075040000-0x00000000757F1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\builder.exe.log

MD5 ac45cc773216001c355992d869450b47
SHA1 1f19c3839b521e1bf1ec7928f32f45234f38ea40
SHA256 c9c03abe98c496376975747c9b617f5f6e1b50aec09aa8be31aa24e81254901f
SHA512 3d73620a59089bc05d60ae07f0811ddacd1661599eca096cd9927813f86dc9cebac1de221691373601c743250694de43e408a9e607e813fb28260b1509f84574

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

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Analysis: behavioral3

Detonation Overview

Submitted

2024-09-09 22:06

Reported

2024-09-09 22:08

Platform

win11-20240802-en

Max time kernel

147s

Max time network

149s

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

Files

N/A