Malicious PDF — malware analysis report

Static analysis result for SHA-256 c928badce5e20aee…

MALICIOUS

PDF

32.7 KB Created: 2021-06-28 02:50:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6cddd042d547d7009b34b4292cbfedee SHA-1: 69dc3a1259674a63954f6a7b61f7826c17d66c02 SHA-256: c928badce5e20aee1ab9f4b6d54751a7fdb76ec7268e529b7e49bd08dbbe6201
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and document body text that promote 'hacks' for popular games, aiming to trick users into downloading malicious content. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that at least one of the embedded URLs points to known malicious infrastructure, likely serving as a downloader for a second-stage payload. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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/hacking-roblox-by-hacking-roblox-by-zia-let In PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-20210-robux-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/descargar-hack-para-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-speed-hack-on-roblox-no-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-game_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-teleport-in-roblox-ragdoll-system-test-no-hacks_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-valkyrie-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-roblox-info_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hacked-appbounty-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-gift-card-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-2021-hack_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_off00002ac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC1 21552 bytes
SHA-256: 115e08f6ac1cbdcd1bfcc80325491de4482a890348e0fe5495fac77f58c7c378
font_01_sfnt_off00005a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A07 19372 bytes
SHA-256: 76c116dc56f053185cfae9c56f79588ed213536ef2abfd6e54253fb3cc432578

Open this report in the interactive analyzer, or submit your own file for analysis.