Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc58000eb63bd1b…

MALICIOUS

PDF

35.8 KB Created: 2021-07-06 10:56:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a64a69d49789b698e94a3f3ddaaacbfa SHA-1: 44b41fe8f68457b680953be672cb071cd4fe845f SHA-256: 6fc58000eb63bd1bf722ccbc5780bb7a8783f438288d17a428fd110cbd6430fe
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free in-game currency, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's designed to redirect users to external URLs. No scripts were extracted, but the document's structure and embedded URLs suggest an attempt to trick users into visiting potentially harmful sites.

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/how-do-i-get-free-spins-in-coin-master-game-hack PDF link annotation
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/get-free-robux-daily_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id/repository/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/rbx-hut_GM431946152.pdfIn PDF document text
    • http://perpus.poltekkes-tanjungpinang.ac.id//repository/roblox-moderators_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_off000034f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F5 23020 bytes
SHA-256: 55a385ec9631acec95115790cc1a5e9b21f047b098d36e73478e771886bf4922
font_01_sfnt_off000068ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BA 18508 bytes
SHA-256: 5fa4adbbb2c865a19aa6c2d7661c2270d24b48d73078d2e2d8c4fb61005cd4a1

Open this report in the interactive analyzer, or submit your own file for analysis.