Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e39126176f02c2…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 08:49:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: af42fdf28e12ab79d3e21a4e779c1df6 SHA-1: 1e6108392dbd0519e25e0c6e0d4261e9d0a5c350 SHA-256: 01e39126176f02c281504273520e2026789dea62d9318b693bdc162af0ebbdd0
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links and text promoting 'Free Robux' and game cheats, designed to trick users into clicking malicious URLs. The primary malicious URL identified is http://netcdn.co/app/431946152/free-robux-site-youtube.com-game-hack, which is flagged as a redirector to known malicious infrastructure. The document body and heuristics indicate a social engineering lure for potentially unwanted or malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/free-robux-site-youtube.com-game-hack In PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/free-roblox-character-editor_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/roblox-booga-booga-admin-script-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/redeem-free-robux-code_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-to-hack-roblox-lumber-tycoon-2-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/roblox-cheat-money-in-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/how-to-hack-and-get-free-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_off00002f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8E 22388 bytes
SHA-256: a0fef9af81f0809b7be5483b82298c7a121f70161bb60fde81e876ea02ef7719
font_01_sfnt_off0000614b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614B 19428 bytes
SHA-256: e01d39c27df1d37bbb06d9ddf5e7d1ed149954022e2a9982178d777db36cf63a

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