Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ec72719f6e2bf5…

MALICIOUS

PDF

33.0 KB Created: 2021-06-26 04:43:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 7abb852a57594ca6e445423e39fa589c SHA-1: dac7179133f24cf87127f1a29cffacc9e5ccb768 SHA-256: d3ec72719f6e2bf50cae0a220c691ac6e45a061848411ef2ac55db60b3971dcb
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • 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/roblox-free-roming-camera-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/free-tiktok-followers-just-username_GM835599320.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free4mobile-info-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hacks-download-2021-with-virustotal_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-works-no-surveys-no-human-verification-code_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-defenders-of-robloxia_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-clothes-giveaway-online-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/does-e-free-work-on-roblox_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_off00002ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA1 22072 bytes
SHA-256: 2a90471297267f046748a0aaf47d953759b986dbd25d57ba472c981fd61291ba
font_01_sfnt_off00005c75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C75 19032 bytes
SHA-256: 760afb78411af2ca9a8aedda517b587b783bf8cf9ecabf6d64a27fba2aa61d03

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