Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa040afec0b821c…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 06:52:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 291ff331345bef1b6af871fb66971e11 SHA-1: f6870d431f8e83bdcb92e58898c21d58c843a15a SHA-256: 7fa040afec0b821c508a964717402c6cdfb551c0a719a6ebb70f0a8819cda021
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack lure, specifically pointing to the URL https://netcdn.online/app/479516143/minecraft-pocket-apk-game-hack. This URL is presented as a call-to-action within the document body, suggesting a phishing or scam attempt to trick users into visiting a potentially malicious site. The ML classifier also flagged the PDF as malicious with high confidence.

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/479516143/minecraft-pocket-apk-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/roblox-cheats-on-girlfriend_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pubg-uc-100-bonus_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/paypal-to-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-2021-app_GM406889139.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_off000052e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E5 26444 bytes
SHA-256: 5e07d3f951d28ae25e6ff499785e94df778950a1af0da04a8b5eca35129e710a
font_01_sfnt_off00008c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7C 18208 bytes
SHA-256: 43fabaa7baa2069dea089d396f6a12271a87df7a231cffc83c7f5458ac3d8eee

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