Resubmissions

15/09/2026, 11:12

260915-navswatygv10

07/09/2026, 00:25

260907-aqql7sttav10

04/08/2026, 14:58

260804-sb5rpashpf10

04/08/2026, 06:06

260804-gt3t9seb3810

04/08/2026, 05:43

260804-gey8jaw1bx10

24/07/2026, 07:14

260724-h2zy1svbmg10

24/07/2026, 07:09

260724-hy9ztatwfy10

24/07/2026, 06:50

260724-hmdggahn6v10

21/07/2026, 16:13

260721-tpe9macc423

21/07/2026, 16:00

260721-tfvb7axvcy10

General

  • Target
    Downloaders.zip
  • Size 12KB
  • Sample260724-hmdggahn6v
  • SHA256 16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Aquarius

C2
  • 192.168.8.103:4782

  • 192.168.8.105:4782

  • 192.168.8.114:4782

Mutex
  • a198a147-9efc-419d-9539-bac2108dc109

Attributes
  • encryption_key

    4CF458F992C472DE78F317085B34A8A1747FC32D

  • install_name

    WindowsDataUpdater.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowsDataUpdater

  • subdirectory

    WinBioData

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • kitchen-english.gl.at.ply.gg:53578

Mutex
  • Q9L5WEESFQ4M5VU2

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family
  • phorphiex

C2
  • 178.16.54.109

Mutex
  • TWIZTPEINF

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • botnet

C2
  • 165.227.31.192:22069

  • 193.161.193.99:64425

  • 193.161.193.99:60470

Mutex
  • 713051d4-4ad4-4ad0-b2ed-4ddd8fe2349d

Attributes
  • encryption_key

    684009117DF150EF232A2EE8AE172085964C1CF0

  • install_name

    System.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Office

  • subdirectory

    Winrar

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1309109349976772669/btEqlDM2ocrsuktKkKj31Gmh1CdwZzJyC0Kemkugf6P7NQd4BBhHTJ1dF0IUeMDACNjF

Targets

    • Target
      4363463463464363463463463.exe
    • Size 10KB
    • SHA256 2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • A stealer written in Python and packaged with Pyinstaller

    • Detect Xworm Payload

    • Detects Umbral payload

    • Family: Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Family: Phorphiex, Phorpiex

      Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Family: Umbral

      Umbral stealer is an open-source modular stealer written in C#.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Family: blankgrabber

      Blankgrabber is an infostealer written in Python and packaged with Pyinstaller.

    • Family: xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Quasar payload

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Downloads MZ/PE file

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • Signed with revoked ConnectWise certificate

      Binary is signed using a ConnectWise certificate revoked for key compromise.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Cryptocurrency Miner

      Makes network request to known mining pool URL.

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks