Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ea1443562d8d0a…

MALICIOUS

PDF

36.6 KB Created: 2021-06-20 06:40:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 00adad9a7fab78c3e9994471d40ae812 SHA-1: 1b8f9ffa1b0d676b5231b222c307e44ca5de8233 SHA-256: 52ea1443562d8d0ae86d81ea5b20cc890419d78d1d5e82747e888766be4b846c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of a malicious SEO link farm, generating numerous links to external resources related to game hacks and free in-game currency. The presence of a direct link to 'netcdn.co' suggests an attempt to redirect users to a potentially malicious download or exploit. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/why-is-roblox-free-game-hack
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-vehicle-simulator-how-to-get-free-cars_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-robux-and-tickets-roblox_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/robux-hackhttps-pastebincom-mc23cpnm_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-vermillion-free-level-7-site-v3rmillionnet_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-robux-redeem-codes_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-get-free-robux-really-easy_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-get-tshirts-on-roblox-free_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/get-free-robux-now_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/roblox-phantom-forces-hack-2021-august_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-hack-into-other-peoples-roblox-accounts_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/counter-roblox-offensive-noclip-hack_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-robux-without-offers_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-hack-robloxs-website_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/how-to-hack-someones-roblox-account-for-robux_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/easy-ways-to-get-free-robux_GM431946152.pdf
    • http://pustaka.biologi.fmipa.unand.ac.id/repository/free-ways-to-get-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003628.bin
ae399219d6efb4d72f9d9e665869a4e63b2224309140b50d52a948f2a8121918		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3628 22948 bytes
font_01_sfnt_off000069b7.bin
e024c9005a7dec67e21aaeb7bd689cb58f31187a4cab885c01a06c1eb410dd83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B7 19192 bytes

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