Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df84cf912a8591d…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 08:10:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9d265a068bc6f4d33a5fd059c4b6f36d SHA-1: 8d9b4187234fa9863bec268893b57d3c6a4df7a8 SHA-256: 2df84cf912a8591d39ae664815c448ba2db8cfab6804c20cf70f4bd0f7a37f19
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a download for a Minecraft game hack. This lure is designed to trick users into visiting a malicious URL, likely to download further malware or engage in phishing. The ML classifier strongly supports the malicious nature of this PDF.

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/479516143/minecraft-free-download-mobile-game-hack PDF link annotation
    • http://pustaka.stikesperintis.ac.id/repository/tiktok-free-netflix_GM835599320.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-weight-lifting-simulator-3-hack-download_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/funneh-roblox-simulator-free_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/yyoutube-robux-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-hack-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
font_00_sfnt_off000031fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FB 22708 bytes
SHA-256: 5ee9480b611fd0feafd257961fdec122cea8c9009c55bf11eefceccdaf5baf78
font_01_sfnt_off00006448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6448 18736 bytes
SHA-256: b6e051f0b4e02b7356fd7079c0d6036a663a9338c3288034fa352d97dcc0d1e4

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