Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe762164125278c4…

MALICIOUS

PDF

35.7 KB Created: 2021-06-29 19:24:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4c3ec303a7722e13f333b887e2198c5a SHA-1: 80a21ee4338293330212972292714243ad0add4f SHA-256: fe762164125278c461982f444ee10e9ebcf40d96dd054ae4815a341029362c88
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and lures related to game hacks and free in-game currency, specifically mentioning Roblox and eBay. The primary malicious link identified is http://netcdn.co/app/431946152/ebay-free-acount-roblox-game-hack, which likely serves as a redirector to a malicious site or a malware download. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to trick users into downloading potentially harmful content.

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/ebay-free-acount-roblox-game-hack PDF link annotation
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-change-my-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-exploits-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-hack-sb2_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-roblox-fedoras_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-script-codes-for-roblox-executors_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-no-human-verification-no-scam_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/make-free-robux_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_off000033f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33F9 22592 bytes
SHA-256: 253cab1125e7078dc508f9be4cbbe130cc54916cf8620c1a1d6a9de9c780dffd
font_01_sfnt_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 19072 bytes
SHA-256: 7e8ec9dd14b88d5caaad679ab39caaecf9b78a6b61a641d8070cba27bfad4da0

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