Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fa028930dfcd0f…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 03:03:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: e386b6a1091e8d8cf33a043ea5d933d0 SHA-1: 55ec11bc5ed1bdc392742d6fc176a51498b9d230 SHA-256: f2fa028930dfcd0f09f002cd6de2ec917c05720881f6c859485c86027f4169f3
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/como-ser-invisible-en-roblox-hack-game-hack In PDF document text
    • http://cintabaca.org/katalog/repository/how-to-hack-roblox-accounts-website_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/mining-simulator-hack-roblox-anfr_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-generator-no-survey-no-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/best-free-items-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/conta-roblox-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-without-downloading-apps_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_off00002f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F41 22580 bytes
SHA-256: 24df7c5626f14a56c7fc676057ed6217eb278475887d5f7e45654e034414303a
font_01_sfnt_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 19148 bytes
SHA-256: b6de933c1f998ffbf2be2f49fed4f5c8b8c996ae71dd5e3ee710565fc125b678