Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c16dc3eaf337c9…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 23:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9a3fd34c5046674beee2cf6bb0fca0e9 SHA-1: ab455e7b066026e6f4459d7c45eb4c40edb7bb3f SHA-256: 46c16dc3eaf337c9c2915c1d4035de729f3a4561e3c4ba4a878cb5989a9e77e6
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 0.9769

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/coin-master-hack-mod-apk-35-8-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/static-moonactive_GM406889139.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/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f49.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F49 26184 bytes
SHA-256: c1757c269e81211e83e2469f319b4431e53eb9816eb83e7e380012dc428a1c28
font_01_sfnt_off00008bd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD0 3400 bytes
SHA-256: 75c3a8e6f5c68e0746f893c922e57fd7e888a21fb038f9ae3eedb0a197a59e24
font_02_sfnt_off000096f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96F4 18584 bytes
SHA-256: 9fef9964a984aec35e428d7c5ea58c0aeed198036264215a353dd140f93ed428

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