Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7fe4ef8871d1331…

MALICIOUS

PDF

35.4 KB Created: 2021-06-27 20:50:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 56966bdbe32eac9828931d098cfdf811 SHA-1: 2dc6d172d21f3644beac2ec005177a2fa6cc1db5 SHA-256: a7fe4ef8871d1331ab1a9ca5d3d32565211e502ba82352c024aac921a2aa9a36
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and linked content indicate a social engineering tactic to trick users into visiting a potentially harmful site.

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/thebesian-get-roblox-ninja-animation-free-game-hack PDF link annotation
    • https://library.iuli.ac.id/repository/free-roblox-hack-no-human-verify-for-tablets_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-building-games-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-chat-hacks-script_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-go-through-walls-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-robux-100-percent-real_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/auto-clicker-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/wie-bekommt-man-free-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/ww-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-inf-jump-in-roblox-no-hack_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-hack-generator-club_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-granny-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off0000306a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306A 23012 bytes
SHA-256: 6f2a453cb89e28cbdf3b3153382e77193705e147082ea7d32d486a38b296df0b
font_01_sfnt_off0000643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643B 19488 bytes
SHA-256: ecbb9ba2b8650e69e5c80fcd4d819bc8659d0dbd2fdf15c77b16adb36c7495da

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