Malicious PDF — malware analysis report

Static analysis result for SHA-256 06469841c1f137aa…

MALICIOUS

PDF

34.5 KB Created: 2021-06-20 07:11:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0b98c4b5c3019f0a531af1b03fb9ee8e SHA-1: aa0686a2309a9c583bb897dbcac4a9394a569cdf SHA-256: 06469841c1f137aac08015f850ed6aa03d6406f92da636b9e5581d0c837b9a4d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and a lure for 'free Robux' and game hacks, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the embedded URLs suggest the document is designed to redirect users to potentially harmful websites for further exploitation.

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/free-robux-2021-no-hack-game-hack PDF link annotation
    • http://lib.stie-aub.ac.id/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-to-get-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-full-throttle-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-easy-2021-on-ipad_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/pastebin-com-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/2021-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/5-roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE7 22512 bytes
SHA-256: 176c9b31f9fff28ebfb2c33fecaab80605ccf17e255faa729633d243a4097364
font_01_sfnt_off0000610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 19288 bytes
SHA-256: ace71a35c046255ec04182e7c24b9b9d9ed868bb511eaa9218be756f2a88f599

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