Malicious PDF — malware analysis report

Static analysis result for SHA-256 206e63854bd377c1…

MALICIOUS

PDF

35.7 KB Created: 2021-06-25 15:33:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 273d02a8b06e1214b2331ae365a1ed46 SHA-1: 14886f236586aaa4073ea9109584bd958561bcb8 SHA-256: 206e63854bd377c1ad6f1af7763cc7ee9424cda321057e4f25801a2be448fd9a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting the malicious site. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or redirection attempt.

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/how-to-get-free-accessories-in-roblox-2021-game-hack In PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-get-robux-for-free-inspect-element_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-robux-script-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-jailbreak-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-rb-world-2-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-hack-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-free-robux-gratis_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-tix-generator-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-unlimited-money-on-roblox-pool-tycoon-4_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-robux-codes-november-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-sprinting-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/update-how-to-get-free-stuff-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-hack-2021-september_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-cheat-engine-63-codes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D2 22828 bytes
SHA-256: 9c07112bbfb496a3c1bf00ed32cb9e215d6396033050caab0d1d9d17efbe2b03
font_01_sfnt_off00006523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6523 19440 bytes
SHA-256: f1d216f4a16aba070c677bb7dbc45c3c15ab941f09354ec3ee2f7a2d49ed33c8

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