Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e8516a314c5d664…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 07:57:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba3c65600f4bac2e395e23d15c4fbb1d SHA-1: bed224e131bc443bc01dcb2ef8764a31a8b63e90 SHA-256: 4e8516a314c5d66414013723ac0a2310ae6ea69236181c2562b653fce5d94fb8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a URL promising free game hacks, specifically for Roblox. Heuristics indicate these links point to known malicious redirector infrastructure. The document body and embedded links suggest a social engineering lure to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/get-free-roblox-game-hack In PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-free-name-change_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-hunter-x-hunter-lvl-hack-on-mac_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/hacks-boku-no-hero-roblox-vermillion-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-gift-card-codes-free-codes_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-hack-on-roblox-ohantom-forces_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-hack-unlimited-health_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/gift-card-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/best-free-things-to-get-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/hack-tool-roblox-pokemon_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-use-cheats-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-daily_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_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 22500 bytes
SHA-256: 986dce9cc83c1f3b35df99a4714e59c12c1feca02c4bb181c077184a12125475
font_01_sfnt_off0000631f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631F 18752 bytes
SHA-256: 8f306cb72d35d07e81842eac0517dc69238a93bc49615aa8c83c44127ce61c23

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