Resubmissions

31/10/2025, 15:05

251031-sglwrsyjap

31/10/2025, 12:43

251031-px4jzagq5v6

31/10/2025, 12:40

251031-pwjs6sxlbr5

31/10/2025, 12:37

251031-ptq5gaxlap10

General

  • Target
    VatalityUpdated(1).7z
  • Size 2.9MB
  • Sample251031-ptq5gaxlap
  • SHA256 68d3e1aa3b45e32bd3f0e6b429ee074cb43b0c28f5eb9789b2f75b82c18aeb6a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1429163829001977967/pxtgvaeWYrwm5R55-xia4mi-LBOYxLaiVcRB1TI-1W9zWzhdwHC0nEl89wZSeNIxbWoZ

Extracted

Family
  • phantomstealer

Version
  • v2.0

C2
  • https://api.telegram.org/bot8039061102:AAGiXvFWLio4vGydwB9jyjt673ImEW9nYkc/sendMessage?chat_id=7635194927

  • https://discord.com/api/webhooks/1429163411165679798/dOXEmY4dhECy_TGSh_epeJ0wyYtCKUEZ_2R0nK5Q5HqV7jnUcWX1gXX-_2UzcWCUTXgb

Mutex
  • 09X9FQQML3VSCL1A378E

Attributes
  • anti_analysis

    0

  • cb_enables_ssl

    0

  • debug

    0

  • keylogger

    0

  • rb_discord

    1

  • rb_smtp

    0

  • rb_telegram

    0

  • start_delay

    1

  • startup

    1

  • webcam_screenshot

    1

Extracted

Family
  • xworm

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    XWormClient.exe

  • pastebin_url

    https://pastebin.com/raw/8TQusSvt

Extracted

Family
  • quasar

Attributes
  • encryption_key

    519FA521299D0C6AC6B60B68959871776BB40B02

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Targets

    • Target
      VatalityUpdated(1).7z
    • Size 2.9MB
    • SHA256 68d3e1aa3b45e32bd3f0e6b429ee074cb43b0c28f5eb9789b2f75b82c18aeb6a
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Xworm Payload

    • Detects Umbral payload

    • Modifies WinLogon for persistence

    • Phantomstealer family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Umbral

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

    • Umbral family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Detected potential entity reuse from brand GOOGLE.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks