Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef34268c5163b6c4…

MALICIOUS

PDF

17.1 KB Created: 2019-05-01 19:23:53 +01:00 Authoring application: mPDF 5.7
MD5: d6bf6bd913867ade859583215e246130 SHA-1: c0192928a0dd09c00a55daf32ca0da05cdb07fc9 SHA-256: ef34268c5163b6c4a7c1eaa873cefd7965d9fb0664b1e22ac6b6abb31d22e1f5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic identified the link farm. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://seasasac.lflinkup.com/1da1da5da9da0da4/Rocky-Mountain-Haven-Six-Pack-Ranch-2-Rocky-Mountain-House-2-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da8da3da9da8da5/Rocky-Mountain-Haven-Six-Pack-Ranch-2-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/2da8da1da6da3da3/Rocky-Mountain-Romance-Six-Pack-Ranch-7-Rocky-Mountain-House-9-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da7da8da4da9da5/Rocky-Mountain-Desire-Six-Pack-Ranch-3-Rocky-Mountain-House-3-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/4da5da6da0da7da7/Rocky-Mountain-Retreat-Six-Pack-Ranch-8-Rocky-Mountain-House-11-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da7da7da4da4da5/Rocky-Mountain-Home-Six-Pack-Ranch-11-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/4da5da0da8da9da3/Rocky-Mountain-Freedom-Six-Pack-Ranch-6-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/3da2da5da9da9da0/Rocky-Mountain-Rebel-Six-Pack-Ranch-5-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da7da7da4da8da1/Rocky-Mountain-Angel-Six-Pack-Ranch-4-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da8da2da9da4da9/Rocky-Ride-Thompson-amp-Sons-2-Rocky-Mountain-House-8-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da0da9da4da0da9da4/Turn-It-On-Turner-Twins-2-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/2da0da5da9da5da8/Paradise-Found-Bandicoot-Cove-2-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/2da7da7da8da1da2/Tidal-Wave-Forces-of-Nature-1-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/2da3da4da5da0da0/Black-Gold-Takhini-Wolves-1-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da8da8da5da3da1/Laird-Wolf-Takhini-Shifters-2-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/2da0da2da8da1da4/Baby-Be-Mine-Thompson-amp-Sons-bonus-book-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/1da8da4da8da8da5/Master-of-the-Mountain-Mountain-Masters-amp-Dark-Haven-1-by-Cherise-Sinclair.pdf
    • http://seasasac.lflinkup.com/2da2da1da7da6da0/Doms-of-Dark-Haven-2-Western-Nights-Mountain-Masters-amp-Dark-Haven-4-by-Sierra-Cartwright.pdf
    • http://seasasac.lflinkup.com/1da8da2da9da4da3/Ride-Baby-Ride-Thompson-amp-Sons-Book-1-by-Vivian-Arend.pdf
    • http://seasasac.lflinkup.com/3da8da9da3da4da2/Rodeo-Rocky-The-Horses-of-Half-Moon-Ranch-2-by-Jenny-Oldfield.pdf
    • http://seasasac.lflinkup.com/1da7da7da4da4da5/Rocky-Mountain-H

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