Resubmissions

11/10/2026, 23:13

261011-27hfpsah9310

11/10/2026, 02:38

261011-c4s1laes5110

General

  • Target
    Default.exe
  • Size 7.4MB
  • Sample261011-27hfpsah93
  • SHA256 9d02e370b7c79d2472d96af30c38e4fca1181710f682ddbdd12059da645ac999
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Default.exe
    • Size 7.4MB
    • SHA256 9d02e370b7c79d2472d96af30c38e4fca1181710f682ddbdd12059da645ac999
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Custom signature

      Blank Grabber infostealer - deobfuscated payload (stage 3)

      Matches plaintext strings from the AES-decrypted BlankOBF payload of Blank Grabber (PyInstaller 3.11 stage chain: loader-o -> blank.aes/stub-o -> stealer). Captures Discord tokens, browser credentials, game sessions, crypto wallets and exfiltrates via Discord webhook / gofile / anonfiles.

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Detects BlankGrabber stealer in memory

    • Family: blank_grabber

    • Family: blankgrabber

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

    • Disables one or more Microsoft Defender components

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

    • Clipboard Data

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Custom signature

      Detects references to legitimate web services potentially used as dead drop resolvers

      Detects Telegram, Steam, and other legitimate web-service references that may be used to retrieve secondary C2 infrastructure.

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

MITRE ATT&CK Enterprise v16

Tasks