Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce4a95e924c126a…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 01:13:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 27daac1fca34b8ad6996e7ebeedba8ce SHA-1: 639f2c4a302f54756e96d4d7d34f183d686865e1 SHA-256: 6ce4a95e924c126a65d5cb88d4f849bed0fec6ecffe1dfabb197cc5739f8c573
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a document body that promotes game hacks and cheats, indicating a lure for users to download potentially malicious content. The ML classifier and PDF link farm heuristics strongly suggest malicious intent, likely to distribute malware or lead users to phishing sites.

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/redboy-roblox-hack-easy-downlaod-game-hack
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-without-downloading-any-apps_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/site-17-hack-roblox_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-get-free-shirts-on-roblox-2021_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-realms-for-free_GM479516143.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/roblox-john-doe-when-they-hack_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/free-printable-minecraft-coloring-pages_GM479516143.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-codes-2021_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-lego-hacking-roblox_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/free-minecraft-survival-server_GM479516143.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/distork-free-robux-generator_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/roblox-get-free-robux-no-human-verification_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/deep-chills-run-free-roblox-id_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/free-tiktok-accounts-and-passwords_GM835599320.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-noclip-in-roblox-with-cheat-engine-2021_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-hack-into-roblox-and-get-builders-club_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/free-robux-no-download_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/how-to-earn-free-robux_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdf
    • http://elearning.mtsnlingga.sch.id/__statics/gudangsoal/files/cheat-engine-for-mac-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003259.bin
94cb91e3f6c51b4af1548a0b711f3e426fa7f0d1af24d635c7de9f1d18a04f22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3259 22264 bytes
font_01_sfnt_off000063c3.bin
1632e918702427a94e4ded2a7d405f39ff7a88b85cd5334d687b11f43d94f23b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C3 19344 bytes

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