Malware Analysis Report

2024-11-16 13:03

Sample ID 240909-18aa2stamj
Target Client-built.exe
SHA256 b39337904af234ce5ab04051a009b9a8c60fa46bccc76d449800be886c123e0b
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b39337904af234ce5ab04051a009b9a8c60fa46bccc76d449800be886c123e0b

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

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-09-09 22:18

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 22:18

Reported

2024-09-09 22:21

Platform

win11-20240802-en

Max time kernel

147s

Max time network

150s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3007475212-2160282277-2943627620-1000_Classes\Local Settings\MuiCache C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Client-built.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe N/A

Processes

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

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

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe

"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca

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/3420-0-0x00007FFD38193000-0x00007FFD38195000-memory.dmp

memory/3420-1-0x00000232320D0000-0x00000232320E8000-memory.dmp

memory/3420-2-0x000002324C750000-0x000002324C912000-memory.dmp

memory/3420-3-0x00007FFD38190000-0x00007FFD38C52000-memory.dmp

memory/3420-4-0x000002324D9D0000-0x000002324DEF8000-memory.dmp

memory/3420-5-0x00007FFD38193000-0x00007FFD38195000-memory.dmp

memory/3420-6-0x00007FFD38190000-0x00007FFD38C52000-memory.dmp

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

MD5 c3e08121cabb9380e3d50cadde97d53a
SHA1 0e666954e83e97e3883e52092fe2be88a520e8f8
SHA256 76e1d3ab7320c4b863adb091b5b77205d81e13eafb539a18ebe3d8ea46b29433
SHA512 9a6ef7710781d2f3a1f873129b21990548c1b275720080d87fe4051b464b0aef4ad8625656c388a65163563c6fb2086c29c01ba5f518c5b9679e7227fcc7941f

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

MD5 d9c90cc81a3965139958ce95221b3e3f
SHA1 e1053a91bd6481e12b86b6a79aae7193e44875b4
SHA256 f99e8c101bde6270bec53e6c18f76fb0f7973acf74f15fac1462b85f2872b1ac
SHA512 a3d4907bcba240286c401ad824fba47f7d1029ddc0ccc776a52049fc2668a7503adf115fe013c1d536d7acb733610b68432a4ccf5069df06f5b7551605128e83