Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7292cc3a5466164…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 08:55:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d4490d8876e015bde692a656b34f09ff SHA-1: 3a1334a3f57767af55bbf898373c35485d25c90a SHA-256: d7292cc3a5466164b3896f72f7c226cd25c6d03ad38527af9fc3860d8ca6c569
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links, suggesting a link farm designed to attract users searching for game cheats or hacks. The document body and extracted URLs explicitly mention 'Free Robux' and 'game hack', indicating a lure for potentially malicious downloads or further phishing. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/free-robux-no-verification-or-survey-game-hack
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/easy-how-to-get-free-robux_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-robux-without-verification_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-game-hack-apk_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/hack-robux_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-attack-link_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-spins-for-coin-masters_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-promo-codes-for-free-robux_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-hackhub-coin-master_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/robux-for-offers_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/spin-hack-for-coin-master_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-2021_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-coin-master-coins-and-spins_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-coin-master-spin-hack_GM406889139.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-no-generator_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/minecraft-pe-hack-client_GM479516143.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-no-password_GM431946152.pdf
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-robux-fast-and-easy_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
stream_004_off0000514b.bin
b1563564d0357109fa52a45b004a6081ab227bff89ce8e84727858835f64c4d3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x514B 25480 bytes
font_01_sfnt_off00008bf3.bin
85e8471d4bb7809b16494b43ecc998cec7f87bafeaec38a3001510264e72f0e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF3 18892 bytes

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