Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f459d64e28a007a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 23:27:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 369420e7b301b30226f7eb9f034f0310 SHA-1: e221988c0611b6d9cbd25df2b08e55c76b7a933b SHA-256: 8f459d64e28a007a58e0eb59e48b85bfc44a07646972994bf2293be775f21921
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are SEO-optimized and point to pages promising game hacks and free in-game currency. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a lure to download further malicious content or engage in phishing. No scripts were extracted, but the document's structure and content 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/como-hackear-roblox-y-conseguir-robux-game-hack
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-arcane-adventures-hack-download_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/hacks-roblox-royal-jelly_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-without-games_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/cheat-codes-for-roblox-mad-city-cash_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-youtube-2021_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-hack-download-for-game-card-code-generator_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-may-2021-no-suscribe_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/minecraft-education-edition-free_GM479516143.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-at-http-get-robux-eu5-net_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/minecraft-hack-mod_GM479516143.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-with-hashes_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/is-it-true-you-can-get-free-robux_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/wwwbandicamcom-hack-roblox_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-no-download-2021_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-tower-of-hell-cheat_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/where-to-type-hacking-codes-on-roblox_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-roblox-credit-for-free_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-minecraft-alt-accounts_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000331a.bin
ab6346560c730646ee0f38a8ab4b9f7b0229df52349d3b0f6f027a54c1cb275b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x331A 21804 bytes
font_01_sfnt_off00006357.bin
95525d685307ece2a0a212dc98bc865b9f99cd0869476f882571e9ff01ac1807		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 19340 bytes

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