Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc3906b3e3f098f…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 20:14:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c4ff07a9df94237e38ac118457da8c82 SHA-1: a70cdbe8237d489f621808d1aeb7111e804ceb85 SHA-256: 7cc3906b3e3f098f74263e503848c664e66044201dd9c11fa7c0a1e61fd09180
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a launch action that redirects to a URL promising free game hacks, a common lure for malware distribution or phishing. The document body and extracted URLs strongly suggest a social engineering attempt to trick users into visiting malicious sites related to game exploits. No scripts were extracted, but the PDF's structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Launch action high PDF_LAUNCH
    PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
  • 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/431946152/free-vip-roblox-game-hack PDF link annotation
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-client-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/launch-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/trucos-de-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-lumber-tycoon-2-script-inserter_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-promo-codes20219-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/pubg-uc-600-sri-lanka-price_GM1330123889.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/robux-boost_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_off00003012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3012 22904 bytes
SHA-256: d97369a55ebd47f3ab1776af4c3bda2f22123e498f374c2012beb57b0fd93ce2
font_01_sfnt_off00006347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 19080 bytes
SHA-256: 5cd26e17e9044f55fd2016feb0b7717245efb1602296708d61af1d0891fbbad2

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