Malicious PDF — malware analysis report

Static analysis result for SHA-256 e866eeb7e89eb39a…

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 18:08:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f15b03acaf81d3a711dafbd43da2e44d SHA-1: 0a835286b5db7496cc8c27869c7df8a50b99f112 SHA-256: e866eeb7e89eb39a5d00d8a81cfb0dd91c2c1cd3b95f202309f8bd0d27277c6c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hacks or free generators. The primary malicious link redirects to infrastructure known for malicious activity. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious websites, likely for further exploitation or phishing. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/rbx-sites-game-hack In PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/roblox-devil_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/robux-rewards_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.masnurulhidayahcibadak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_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
stream_003_off00004b49.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B49 24548 bytes
SHA-256: 37c7f190f0c6554656cf921c2e96158cb4e0db7a8c977864357c45e4ae667911
font_01_sfnt_off0000834d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834D 17792 bytes
SHA-256: 22e4ea1392051312d24b7ae20649c43ebaa2c374788868ee3dffd03a98dca53a

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