Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a5b397c762df82…

MALICIOUS

PDF

34.3 KB Created: 2021-07-08 23:15:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2078d4901159b45015ae9724b797de1a SHA-1: 2602c66315d695ddf17be5cd02932c04e239ef1d SHA-256: 56a5b397c762df82eca381cef9476dbf4bca7f3d14e53aef5355db258fabe5cf
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.tw/app/406889139/80-free-spins-coin-master-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/wall-hack-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-discord-group_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-today-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-full-throttle-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-download-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-cheat-codes-for-phone_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-in-roblox-on-ipad-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-on-a-samsung-phone_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-promo-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/auto-speed-hack-legends-of-speed-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-spin_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-robux-free-bc_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-link-no-verification-2021_GM406889139.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_off00002ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED6 22976 bytes
SHA-256: d368e5d3c59ecdddc7d8cb7ab432d7f952e80d9ab86611415e3643b4fa34b71e
font_01_sfnt_off00006289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6289 18556 bytes
SHA-256: 6aca12d1c5311c20ad8447472a8f74efe8546887157b26755d8bdae78e98e7b0

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