Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ec34160c8c2c5f…

MALICIOUS

PDF

44.0 KB Created: 2021-05-13 07:12:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 20822a60d500b3c02f15722db44a58b2 SHA-1: b6f909ace3b30d0e4ec2d8a61b31da32fbfc25d9 SHA-256: d3ec34160c8c2c5f450b9a471544352bc43bf846a3a703fd161b0f992e03fe37
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/431946152/robux-for-kids-game-hack In PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/robux-generator_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/free-coin-app_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/www-roblox-com-robux_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_off00004bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFD 26156 bytes
SHA-256: bec7f88d34e253befd805ec71dd3f975205803983d06c8dbc53b8b1344e9583a
font_01_sfnt_off0000898b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x898B 18308 bytes
SHA-256: 8a34bf7029799339b91ee5bbc9e7150d15a201a0a283206b71f5bacd63347ffe

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