Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6225933064c5d7…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 07:55:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7d8da0097868ed602f38acc675614c74 SHA-1: 6398c80eca3c53bb3dc4f0a223cfaf076786b717 SHA-256: ef6225933064c5d752c23a85b925bea92a2d081a88b47b68a9ad5563dfb86558
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, specifically mentioning 'Free Roblox Adopt Me Pets', and links to a suspicious URL. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this redirection to a potentially malicious site. Although no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits.

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/431946152/free-roblox-adopt-me-pets-game-hack PDF link annotation
    • http://library.fikes.upnvj.ac.id/repository/hack-roblox-booga-booga-2021_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-robux-site-better-then-irobux_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/roblox-mobile-cheats_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/robux-link_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-robux-games-not-scams_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-code-roblox-animation_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-robux-promo-code-gen-2_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/mobile-for-free-24-roblox_GM431946152.pdfIn PDF document text
    • http://library.fikes.upnvj.ac.id/repository/free-spins-coin-master-2021_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_off00002ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF4 22504 bytes
SHA-256: c68c549b4476bbd442d73397132b786efb50ac05435e68793652e42161b8d5c3
font_01_sfnt_off00006158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6158 19452 bytes
SHA-256: 7b9be5883f45f02dbb03249ff61d9220e610f7b45a0bb0632252067c450821da

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