Malicious PDF — malware analysis report

Static analysis result for SHA-256 011c0dfa0769d193…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 10:13:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 6aa2c9cd2cbb671b856cdc2a2414876a SHA-1: 2d575f87c68fd968a27cbf333984b448c1b2bb20 SHA-256: 011c0dfa0769d19395b8fe132b730afa9984d6f656d05bb162022c1949cb7007
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.online/app/406889139/coin-master-ultra-attack-hack-game-hack In PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-free-skin_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_004_off000051a4.bin)

Related samples 8

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
stream_004_off000051a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51A4 24576 bytes
SHA-256: b25ae76c1fbf4755291cd4be7aa5761c9bba5d9ad0f0fb97ebc7c828e7c11ea6
font_01_sfnt_off000089d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D7 17976 bytes
SHA-256: 1801f115f2963c0be987287eb476f8c8d71e26b2eb4f67ac20109eb32362552c

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