Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07207732cdc664c…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 07:31:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 322e00c4702e037d691463be11d280e2 SHA-1: be7260893ca46e0c17c3673da05851780942a4c5 SHA-256: c07207732cdc664cb39d5ba5ab53eb4bb3923394a7820b8e2be42c69df3c43b9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-optimized slugs pointing to game-related content, suggesting a link farm designed to attract users. The primary URL, 'https://netcdn.xyz/app/431946152/free-roblox-accounts-with-robux-that-work-not-banned-game-hack', is presented as a lure for free game items or accounts. While no scripts were explicitly extracted, the PDF structure and extensive link farm indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.xyz/app/431946152/free-roblox-accounts-with-robux-that-work-not-banned-game-hack
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/minecraft-pe-texture-packs-free-download_GM479516143.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/game-toolbox_GM479516143.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-pet-treats-coin-master_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/coin-master-free-coin-hack_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-spins-for-coin-master-app_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/minecraft-rtx-download-free_GM479516143.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-spins-coin-master-generator_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/getrobux-info_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/how-to-add-mods-to-minecraft-pe_GM479516143.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/wurst-client_GM479516143.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-no-verification-2021-android_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/robux-hack-no-human-verification_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/coin-master-free-spin-app-iphone_GM406889139.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/best-way-to-get-free-robux_GM431946152.pdf
    • https://www.kofordconverting.com/uploaded_files/userfiles/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdf
    • https://Buy.HoaxMC.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b32.bin
6ce9a5906655684ba6e3c99122fddabf32481c2ceff12bb439b5bf34448eb71d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B32 25100 bytes
font_01_sfnt_off0000855d.bin
efa3c9b2c8f55d2ce8a78f8ae751aa117ac14b1934403b15023fd1527a527783		 pdf-font-stream PDF embedded font (sfnt) at offset 0x855D 19248 bytes

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