Malware Analysis Report

2024-09-11 09:18

Sample ID 240616-wvrkys1fmh
Target Coreblocks_installer.exe
SHA256 14bd51be45a8ff796ee65e4392fd83b620db7eb22c1795c8a3cc2d6f78d7a5a8
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

14bd51be45a8ff796ee65e4392fd83b620db7eb22c1795c8a3cc2d6f78d7a5a8

Threat Level: Known bad

The file Coreblocks_installer.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

Discordrat family

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-16 18:14

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 18:14

Reported

2024-06-17 00:26

Platform

win10v2004-20240508-en

Max time kernel

1795s

Max time network

1799s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Coreblocks_installer.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\Coreblocks_installer.exe N/A

Processes

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4036,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4204 /prefetch:8

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3996,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=3988 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp

Files

memory/708-0-0x000002684EB80000-0x000002684EB98000-memory.dmp

memory/708-1-0x00007FF939B93000-0x00007FF939B95000-memory.dmp

memory/708-2-0x0000026869290000-0x0000026869452000-memory.dmp

memory/708-3-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

memory/708-4-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 18:14

Reported

2024-06-17 00:26

Platform

win7-20240508-en

Max time kernel

1565s

Max time network

1566s

Command Line

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

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Processes

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1700 -s 600

Network

N/A

Files

memory/1700-0-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

memory/1700-1-0x000000013F220000-0x000000013F238000-memory.dmp

memory/1700-2-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp