Malicious PDF — malware analysis report

Static analysis result for SHA-256 2216622f49061cf0…

MALICIOUS

PDF

32.5 KB Created: 2021-06-28 06:10:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 38a773b575b5782da198412d24c2e1fc SHA-1: 990e4002313a333a0e914212dd8d8d67abccd771 SHA-256: 2216622f49061cf0d1212bc8986800017f1693160b700f8f2aab16abc710de72
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 hosted on domains like 'netcdn.co' and 'jandimotors.co.uk', and are themed around Roblox game hacks and free Robux. The presence of a PDF link farm heuristic and ML classification strongly suggests malicious intent. The document body, though partially corrupted, reinforces this by containing similar keywords and URLs, indicating a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/can-you-change-your-username-on-roblox-back-for-free-game-hack
    • http://jandimotors.co.uk/images/wear-trash-gang-merch-on-roblox-for-free_GM431946152.pdf
    • http://jandimotors.co.uk/images/roblox-client-hack_GM431946152.pdf
    • http://jandimotors.co.uk/images/cheat-qui-dupli-sur-roblox_GM431946152.pdf
    • http://jandimotors.co.uk/images/farewell-hack-roblox-one-piece-open-seas_GM431946152.pdf
    • http://jandimotors.co.uk/images/roblox-royale-high-school-hacks-de-todo-tipo_GM431946152.pdf
    • http://jandimotors.co.uk/images/roblox-games-with-free-radio_GM431946152.pdf
    • http://jandimotors.co.uk/images/roblox-how-to-get-free-robux-youtube_GM431946152.pdf
    • http://jandimotors.co.uk/images/free-server-creator-roblox_GM431946152.pdf
    • http://jandimotors.co.uk/images/free-robux-generator-club_GM431946152.pdf
    • http://jandimotors.co.uk/images/how-to-get-free-robux-denis_GM431946152.pdf
    • http://jandimotors.co.uk/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://jandimotors.co.uk/images/free-games-to-play-like-roblox_GM431946152.pdf
    • http://jandimotors.co.uk/images/hacks-para-arsenal-roblox_GM431946152.pdf
    • http://jandimotors.co.uk/images/minecraft-skins-download-free_GM479516143.pdf
    • http://jandimotors.co.uk/images/roblox-work-at-a-pizza-place-cheats-2021_GM431946152.pdf
    • http://jandimotors.co.uk/images/how-to-get-free-robux-without-verification_GM431946152.pdf
    • http://jandimotors.co.uk/images/safe-free-robux-no-password-or-human-verification_GM431946152.pdf
    • http://jandimotors.co.uk/images/free-tiktok-followers-generator_GM835599320.pdf
    • http://jandimotors.co.uk/images/free-robux-for-mac_GM431946152.pdf
    • http://jandimotors.co.uk/images/hack-roblox-commands_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000029fb.bin
6f7888c4f4f78633b197c7a3205fc084836de70b7b74bca222f42d29a6d497a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x29FB 21492 bytes
font_01_sfnt_off00005931.bin
9678fd23b2aeb2e1026b0fd4c2942f141b07c2ed1f2e725dfe8937bf8da65f63
pdf-font-stream PDF embedded font (sfnt) at offset 0x5931 19548 bytes