Malicious PDF — malware analysis report

Static analysis result for SHA-256 501da517b6df6776…

MALICIOUS

PDF

47.2 KB Created: 2021-06-04 01:04:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 00e11b29b689d87cc62339bceef3551e SHA-1: 9dda5021e34b79154d3662c1c2e0adede8dc1f19 SHA-256: 501da517b6df6776fe10dc97286a23d082071dda0beb66834b1d0ba7800adfe0
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/479516143/free-minecraft-alt-accounts-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-earn-free-pokeballs-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/rbx-earn_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5677 24224 bytes
SHA-256: 4fd45c8d9329787842179a69c388366f5d9a217f426d22cbf6a1228f93a31b3f
font_01_sfnt_off00008d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D12 2856 bytes
SHA-256: 20dc0c19885f9eb84a70adf762c7af2bb5b336981fcfa4d14a25b177438c211a
font_02_sfnt_off000096e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E7 17924 bytes
SHA-256: ca2704b96dad28857c40796bc5f3f160f1252a4638d6e656e043cddf4ab01458

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