Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd1581f04ab56af…

MALICIOUS

PDF

46.1 KB Created: 2021-06-10 23:02:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: fa1a95bb360ce7f4b8a7f371caeb8f63 SHA-1: 615faef7a1295b9355baef65d36a22e1e4866a39 SHA-256: 3dd1581f04ab56af7d6f335c853519a409906545431c4a15453cb58f82fcd573
160 Risk Score

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/how-to-get-free-forgotten-knife-in-assasin-y-roblox-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-inspect-element-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-outfits_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-android_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-u-u-use-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-miner_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_off00005360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5360 25716 bytes
SHA-256: 6e1a4dcd5989f61787f10bb3979a87e87b333e60f76f03f6d36e8dbceb28561d
font_01_sfnt_off00008f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F66 19012 bytes
SHA-256: 2c47a080e585342bb999c40c3d1311e068a1ada2a2201f697c972f642e75da7f

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