Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d32ff6dff6d9c4…

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 11:06:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 686c77b65ef241a4d31046179dd15737 SHA-1: c6a799622b947498172a637a1d60481f23e97fbd SHA-256: e6d32ff6dff6d9c4a9026b859289050d356c55ac20928fc95e036cfb6446e6b0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free spins, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. The embedded URL likely leads to a site that attempts to trick users into downloading further malware or engaging in other malicious activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-spins-and-coins-blogspot-coin-master-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-win_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/dress-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/tiktok-free-tv-shows_GM835599320.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
stream_004_off00004f58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F58 25280 bytes
SHA-256: ef5d69c34a7abc5002697901bb5a29904c212cfcd189516a375c67102be12f79
font_01_sfnt_off0000899f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x899F 18636 bytes
SHA-256: f050b99fae15787f3dcd3a9ca1a9f1ede4f92304234d1532a9c4a0f9b5d220ed