Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d32eb4ec6a1568…

MALICIOUS

PDF

33.2 KB Created: 2021-07-02 09:53:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: fc64eefaff16442d7598d4b7910db1fe SHA-1: e729d1963a7ad00c7c09513a0ee48d5ccc0ac66e SHA-256: 80d32eb4ec6a156859125b5c93de836be2a53d4d557b1634031881fa565e289b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/479516143/hack-minecraft-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/how-to-get-free-things-in-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-gamepasses-roblox-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-money_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-not-clickbait-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/i-got-my-account-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/woman-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-money-on-lumber-tycoon-2-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD1 22024 bytes
SHA-256: bde93744a0f290a977c305e470f0171431a0a34209dd4f655c4ee13170279b18
font_01_sfnt_off0000601f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601F 18024 bytes
SHA-256: dfd9b79a19cc1f195c001309102fb5aa6a063071b6395cd5a2b473f5f084aedf

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