Malicious PDF — malware analysis report

Static analysis result for SHA-256 c74f174c3cf62d73…

MALICIOUS

PDF

45.2 KB Created: 2021-06-10 22:48:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25b8736285ed5b69776015778f3c84f1 SHA-1: c920c1eb6479c35cccb21566aadf4ee85ad0166c SHA-256: c74f174c3cf62d73a2fa021a6fb87615e06de85fbc12ecbbe38c97674064b3db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary lure URL is https://netcdn.tw/app/431946152/your-bizzare-adventure-script-esp-free-2021-roblox-game-hack, which is designed to trick users into downloading potentially malicious content. The document body and embedded links strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/your-bizzare-adventure-script-esp-free-2021-roblox-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-generate-pubg-uc_GM1330123889.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes-on-ios_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pubg-uc-wallpaper_GM1330123889.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-para-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacking-websites-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-without-verification-2021_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_off0000503b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x503B 25200 bytes
SHA-256: 65d4fdb9a074caf4da1c9393920bc06375ea1abe582a5934e18960dc8a073f8f
font_01_sfnt_off00008a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A01 19648 bytes
SHA-256: 1ba4a70456470663d46aa3872bb10d35b4e955d3733b103cd6e14e0fff301ea6

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