Malicious PDF — malware analysis report

Static analysis result for SHA-256 682e1ffbcdb6a0e3…

MALICIOUS

PDF

35.0 KB Created: 2021-06-26 22:44:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c1014579f74de5e7d66f4bae20712628 SHA-1: 8ad9a64fa0ce41d54b7ee5e1f51ec96490042c2f SHA-256: 682e1ffbcdb6a0e3d35bca608b8405d1438872a4b222e7dcda076c2374baa429
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains embedded links that point to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/roblox-cheat-engine-6.3-game-hack. The document body and heuristics suggest a lure for downloading game cheats or similar software, which is a common tactic for distributing malware. The ML classifier also strongly flagged this PDF as malicious.

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/roblox-cheat-engine-6.3-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-indir-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-a-free-pet-on-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-hacks-for-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-cheat-codes-shift_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-gift-card-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-download-free-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-card-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-for-roblox-cheats-and-guide-download-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/op-rewards-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_off00003051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3051 22676 bytes
SHA-256: 7f750a8ea8fd1e7ce86ec9c605cc0c60dd55e9d600b8f188f1c3907cb1f76a63
font_01_sfnt_off000062f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 19284 bytes
SHA-256: 24f1889af68d5d272e7343e24ad83b47b38074e14677563443e3f8dcabfe2388