Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e489c927bb974c…

MALICIOUS

PDF

33.5 KB Created: 2021-06-19 06:49:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a196d61b21f0dea3f990dbfb6c580d9f SHA-1: 19b68f761e80ab04bc37c84446936a80f36a57ee SHA-256: 17e489c927bb974c40b87c615ea2d796101c35933cd885a2a821c5b36e6c754c
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/431946152/hack-full-slot-roblox-game-hack PDF link annotation
    • http://repository.unla.ac.id/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/wurst-112_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-hack-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-codes-2021-not-used-june_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-by-changing-the-code_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/best-free-non-virus-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-hack-roblox-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-robux-inspect-hack_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_off00002df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF7 21704 bytes
SHA-256: b0968847e8293cbcf6ae9d39cb392d4a35501dfe8b38de2112731d149f1522ea
font_01_sfnt_off00005dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCD 19064 bytes
SHA-256: b863d630329409266190af442d63331f2773c94ddec6d8449a778e1e87e7dea5

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