Malicious PDF — malware analysis report

Static analysis result for SHA-256 62422eb9101b334a…

MALICIOUS

PDF

44.3 KB Created: 2021-05-12 09:49:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 117c90adebf69a041c45d1895cd99dc6 SHA-1: fbff9a8a464aca18f6e9c56c8baab8f94dabf507 SHA-256: 62422eb9101b334a9026c1368ced313e12aaeee2e24f49106879824adcbc8074
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • 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.
  • 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 https://netcdn.xyz/app/406889139/free-spin-coin-master-ios-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/robux-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/minecraft-free-download-mac-full-version-2021_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004943.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4943 24660 bytes
SHA-256: e27b24389bdaeb6ab7b8e3b6cfd6ed947be7abc6735d33aad6fd4996b5043f25
font_01_sfnt_off000081cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81CB 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB5 17884 bytes
SHA-256: 5eb2d7dbb743594663af058a86b176e9f3c663ad368d873d72479ee79bf44ad7

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