Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f2408cb907eef08…

MALICIOUS

PDF

34.6 KB Created: 2021-06-21 15:45:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 47b62fed0749f274bb93f97b7d12ef36 SHA-1: e3cc56055962e62d621a03fde58f6103b00e7be8 SHA-256: 1f2408cb907eef088bdec51260c812fe46ea2a4f6fe624a2022952de8f128991
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and a document body that attempts to lure the user into downloading game-related cheats or accounts. The primary link, http://netcdn.co/app/431946152/free-gametest1.roblox.com-accounts-game-hack, is identified as a malicious redirector. The ML classifier also flagged this PDF as malicious with high confidence.

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-gametest1.roblox.com-accounts-game-hack In PDF document text
    • http://www.alpaca-buitensport.nl/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/roblox-lumber-tycoon-2-hailstone-hack_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/chisel-and-bits-mod-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/mathep_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/grab-points-login_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/earn-robux-com_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_off00003042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3042 22180 bytes
SHA-256: 5e2e16bb84e31fdbc872708872f4953ca232be78a0b10179340517e111c23e68
font_01_sfnt_off00006193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6193 19324 bytes
SHA-256: e083193b28d2a42fa960138deeeb7aa7dfbd50b275286505af047972531ba3c1

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