Malicious PDF — malware analysis report

Static analysis result for SHA-256 782dd6c9e37a81e7…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 02:23:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 18ffc346c57d69022e709d1577ec94fa SHA-1: 72e8253b5752fc961a4eeb38c46a67d98e0cc52d SHA-256: 782dd6c9e37a81e79e23c6381de3a1dbae84d76e98d331b0afb343211cc267c8
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/hacks-for-roblox-apps-game-hack In PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/pokemon-go-free-kanto-tour_GM1094591345.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/como-hackear-roblox-apk-mediafire-para-ir-mas-rapido_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-2021-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/xp-and-money-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/rbxfree-com-free-robux_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_off0000319f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319F 22448 bytes
SHA-256: 751ddbdce751919a43718b931b025bafcbcfcbf041929fb805187256d7431e13
font_01_sfnt_off0000637a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637A 18996 bytes
SHA-256: 3a22e07ef2c7f7498056c0a30166b684d715a29d769a178bbc13642986925634

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