Malicious PDF — malware analysis report

Static analysis result for SHA-256 deaf1c6b22d4a172…

MALICIOUS

PDF

34.8 KB Created: 2021-07-02 02:28:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ae86897ab2a5ef8af7494382bdb6c2c6 SHA-1: 808d8cd4376548fe5b69143151bb731358d584cc SHA-256: deaf1c6b22d4a172fcf5be62c680d711d4b52be83fe115e04fb87a229fb2fb7b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game items and currency for Roblox, redirecting users to a malicious website. The ML classifier strongly indicated maliciousness, and the PDF contains numerous embedded URLs pointing to similar scam content. No scripts were extracted, but the overall pattern suggests a phishing or scam attempt designed 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.co/app/431946152/how-to-make-any-item-on-roblox-free-game-hack PDF link annotation
    • http://elibrary.fl.unud.ac.id/repository/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/anarchy-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/robux-hack-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-t-shirt-to-create-a-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-robux-generator-2021-2021000_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/robuxian-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/https-free-robux-cf_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/robux-cheat-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/roblox-hack-unlimited-robux-and-tickets_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-to-hack-someones-roblox-account-2021_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_off00002ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA4 22572 bytes
SHA-256: ffa1227e95845abb4dccf6dfb9a54740ac017a2508e3dfa348c5b3f200741e7a
font_01_sfnt_off000060fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FA 19724 bytes
SHA-256: 83ae3a9359c61f8ca070ca2bfb42c0e04978140ec1e615ab1354c1092168c873

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