Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2c586ce24c1046…

MALICIOUS

PDF

12.9 KB Created: 2019-06-13 13:44:39 +01:00 Authoring application: mPDF 5.7
MD5: f63fd781ef30f0624f35cead1343144a SHA-1: 53db5a122086f2872fc0daf71a9054b36b695fbc SHA-256: cc2c586ce24c1046c7f70c33f92af03102930b9d70ee202f04b961696cf4b467
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves directing users to external content, likely for SEO manipulation or to host further malicious payloads. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8272

Heuristics 2

  • 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.
  • 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://cefasfese.4pu.com/2735733733739730/His-Bare-Obsession-Bare-Love-1-by-Lacey-Thorn.pdf
    • http://cefasfese.4pu.com/7730735737738733/Sacrifice-Laid-Bare-Laid-Bare-4-by-S-R-Grey.pdf
    • http://cefasfese.4pu.com/7730735736737736/Unveiled-Laid-Bare-Laid-Bare-2-by-S-R-Grey.pdf
    • http://cefasfese.4pu.com/2732732738731733/Bare-It-All-Love-Undercover-2-by-Lori-Foster.pdf
    • http://cefasfese.4pu.com/2734732739731737/Strip-Me-Bare-by-M-Never.pdf
    • http://cefasfese.4pu.com/2739736739735731/Bare-Assets-by-M-L-Stephens.pdf
    • http://cefasfese.4pu.com/3735732736737730/Bare-Back-by-N-Kuhn.pdf
    • http://cefasfese.4pu.com/6737735735730733/The-DIY-Wedding-Celebrate-Your-Day-Your-Way-by-Kelly-Bare.pdf
    • http://cefasfese.4pu.com/3739731732733736/Going-Bare-by-John-David-Harding.pdf
    • http://cefasfese.4pu.com/9738737734735735/bare-roots-by-Molly-S-Hillery.pdf
    • http://cefasfese.4pu.com/2731739738731737/Stripped-Bare-by-Susan-Mac-Nicol.pdf
    • http://cefasfese.4pu.com/9736735730730734/Bare-Hands-by-Gabi-Moore.pdf
    • http://cefasfese.4pu.com/3739731736733731/Bare-Essentials-Dirt-Roads-1-by-M-L-Stephens.pdf
    • http://cefasfese.4pu.com/4738733734738739/The-Bride-Stripped-Bare-by-Nikki-Gemmell.pdf
    • http://cefasfese.4pu.com/5738731738739/Laid-Bare-Masked-Emotions-3-by-V-E-Campudoni.pdf
    • http://cefasfese.4pu.com/4734738737732736/Jack-of-Hearts-A-Novel-of-the-Seven-Courts-1-by-Ricardo-Bare.pdf
    • http://cefasfese.4pu.com/1731737730731739737/Bare-Blue-Steel-by-Jacqueline-Brocker.pdf
    • http://cefasfese.4pu.com/1732738739734733/The-Corps-of-the-Bare-Boned-Plane-by-Polly-Horvath.pdf
    • http://cefasfese.4pu.com/4737730734736736/Stripped-Bare-Joker-s-Wild-3-by-Lena-Matthews.pdf
    • http://cefasfese.4pu.com/1732738738730730/The-Bare-Plum-of-Winter-Rain-by-Patrick-Lane.pdf

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