Malicious PDF — malware analysis report

Static analysis result for SHA-256 eedea83f538a5a91…

MALICIOUS

PDF

37.7 KB Created: 2021-06-27 22:43:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bdd139bcf3ea0d975656e2d260121efa SHA-1: 327361aa1419adac319efb1ae6dbdcc83e59a7d4 SHA-256: eedea83f538a5a913822f1b1ff29a589af2d6cf4074f6c1ccf4e7a3d4910fff9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a 'link farm', that direct users to websites promising free Robux or game hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'download button' heuristic further suggests a deceptive workflow. The primary intent appears to be luring users to potentially malicious sites for phishing or malware downloads.

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/how-do-i-get-free-robux-with-in-24-hours-game-hack
    • http://e-pustaka.stkipadzkia.ac.id/repository/hack-para-cualquier-juego-de-rpg-en-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/sites-for-free-spins-for-coin-master_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-cheat-free_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/fencing-hacks-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/cheat-codes-on-roblox-xbox-one_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-backpacks-in-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-com_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/pokemon-go-free-play-online-without-downloading_GM1094591345.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-pfficial_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/hack-client-for-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-no-survey-2021-android_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/real-free-robux-generator_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-get-free-robux-in-2-seconds_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-jailbreak-hack-exploit-money_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038e4.bin
afd8510fa975b134d4d627cc2ba909f054354f9863ae438a31d73f4a16692dee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38E4 22888 bytes
font_01_sfnt_off00006c3a.bin
f3aea9081a27e77086f36ca1e3afa44f923736b4b69374035480fe05deaeb33c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3A 19824 bytes

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