Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c19e4ad9441d00e…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 04:05:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 836c46c3f3b50495a0fcddb5e80a2a62 SHA-1: 504808916be8c711451b261d123288336a285c5a SHA-256: 4c19e4ad9441d00e351618a108e981e3b6280be0c4125a68cf180f79c4de8ab4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was generated by wkhtmltopdf and contains a large number of embedded URLs, many of which are SEO-optimized links pointing to other PDFs. The document body and heuristics indicate a lure for free game-related content, such as Roblox and Minecraft hacks, likely intended to trick users into downloading malware. The presence of numerous external links suggests a link farm designed to distribute malicious payloads.

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/free-roblox-birthday-invitation-templates-game-hack
    • http://slims.abulyatama.ac.id/repository/roblox-booga-booga-coin-hack_GM431946152.pdf
    • http://slims.abulyatama.ac.id//repository/spin-hack-for-coin-master_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/roblox-free-items-2021_GM431946152.pdf
    • http://slims.abulyatama.ac.id/repository/minecraft-free-install_GM479516143.pdf
    • http://slims.abulyatama.ac.id/repository/coin-master-latest-version-hack_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/youtube-free-fire-tik-tok_GM835599320.pdf
    • http://slims.abulyatama.ac.id/repository/today-free-spin-coin-master_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/free-spin-coin-master-game_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/cheat-engine-2021-roblox_GM431946152.pdf
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-hats-on-roblox_GM431946152.pdf
    • http://slims.abulyatama.ac.id//repository/robux-hack-tools_GM431946152.pdf
    • http://slims.abulyatama.ac.id/repository/mcpe-116_GM479516143.pdf
    • http://slims.abulyatama.ac.id//repository/minecraft-hacks-wurst_GM479516143.pdf
    • http://slims.abulyatama.ac.id/repository/mosttechs-coin-master-free-spins_GM406889139.pdf
    • http://slims.abulyatama.ac.id//repository/free-400-spins-coin-master_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdf
    • http://slims.abulyatama.ac.id//repository/coin-master-free-link-2021_GM406889139.pdf
    • http://slims.abulyatama.ac.id//repository/coin-master-code-for-free-spins_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/coin-master-400-spin-link-hack_GM406889139.pdf
    • http://slims.abulyatama.ac.id/repository/coin-master-heaven-links-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb8.bin
16eccfa730469702382c4fe0b95030176d9d1bcd2c7d5b453e3299966f20167c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB8 21724 bytes
font_01_sfnt_off00005fa1.bin
ca5806914e3843e179d331e08f29fe0bc84152e6028f1ae1c0ba7af719e875ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA1 19944 bytes

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