Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3f9b1961a31415…

MALICIOUS

PDF

49.6 KB Created: 2021-06-10 14:21:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 4394b5abd6db44565046a4cfc502e72a SHA-1: 2d2c2fd91695279e6d9c2d354f4469244d756bb3 SHA-256: 0d3f9b1961a3141517564d1c4c8fce1b6377fbed58795ad554645b5064501701
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/rocket-simulator-roblox-hack-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cheat-engine-roblox-scripts_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/c-design-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/piano-cheating-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053f6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53F6 26184 bytes
SHA-256: b5d477cc64a763e1754c689bce8fec927a9813ba904bd7a96b925cbfa54874dc
font_01_sfnt_off00009099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9099 3988 bytes
SHA-256: a8f66219c83ec7aa09bcaca5b8aec5596f0f53765f89440e7229ee6b7d66abf3
font_02_sfnt_off00009da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA9 18808 bytes
SHA-256: f72a0879ab8f097d58c8cd5a76955e6b7af75517480b57130d80ff4ecaaf15e3

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