Malicious PDF — malware analysis report

Static analysis result for SHA-256 793232418b095ef7…

MALICIOUS

PDF

45.0 KB Created: 2021-06-07 04:04:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 021c46c8353b80f973a7a7dcfe5bbba8 SHA-1: 414a873b2f11c1a242b5a946229a7c659dcf0db2 SHA-256: 793232418b095ef7829416ddf7a4036d346f4f946e1be97e970249e6200ed4e4
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.tw/app/431946152/how-to-hack-roblox-using-artmoney-game-hack In PDF document text
    • http://library.acehresearch.org/repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/pokemon-go-free-remote-raid-pass-january-2021_GM1094591345.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://library.acehresearch.org/repository/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/can-you-hack-coin-master_GM406889139.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
stream_004_off000051d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51D8 24324 bytes
SHA-256: f4d1ff08526253c12e3a899eb20c7827a1428427593d1c490d9202dd27f439d8
font_01_sfnt_off00008984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8984 19484 bytes
SHA-256: 1fdcab830c8d1e34ea1a8d5ec59bc7099431f2f246305f1800db44d10e481949

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