Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ba2c53ae4058503…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 03:30:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 80ac6eddf64fa87757839877405a16a0 SHA-1: dbee00070904f579a11d1eef5f18de2126c4af9c SHA-256: 6ba2c53ae405850309da5ebb109af060d09574314480d41bdf0b421a72bed296
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with a primary lure related to 'free bots for Roblox'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this is a social engineering tactic to trick users into visiting a malicious site. The ML classifier also flagged this PDF as malicious with high confidence. The document likely serves as a dropper or redirects to a site that will deliver a second-stage payload.

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-bots-for-roblox-game-hack PDF link annotation
    • http://lib.stie-aub.ac.id/repository/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-download-ps3_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-hair-on-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-hack-com-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/pubg-uc-zarah_GM1330123889.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/money-hack-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-heaven-daily-free-spins-and-coins-links_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_off00003105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3105 22996 bytes
SHA-256: deba82642bd3cd4b908de1d71deb28bc30bc5f5a740184ea63e919499dee3529
font_01_sfnt_off000064b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B6 18752 bytes
SHA-256: 768fbdb75f9ff4ef00a2988abf0b75f9f2ec5a31a3be1045c6c1943a17f147e5

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