Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f075840a60bd117…

MALICIOUS

PDF

15.8 KB Created: 2019-06-13 19:34:56 +01:00 Authoring application: mPDF 5.7
MD5: 0c23e50b0fe8b04efa7f7c6b2f2d8642 SHA-1: d794b00c45fa48d31dc377c162655920928aa800 SHA-256: 5f075840a60bd117efaec81d95c0cafcc245787734622d180ec29a0db88c8786
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ML classifier also flagged this PDF as malicious. The embedded URLs, while individually classified as benign, collectively suggest an attempt to manipulate search engine results or redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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/2733739736731738/In-the-Land-of-Cotton-by-Maryann-Austin.pdf
    • http://cefasfese.4pu.com/3732730735730734/Pilgrimage-My-Journey-to-a-Deeper-Faith-in-the-Land-Where-Jesus-Walked-by-Lynn-Austin.pdf
    • http://cefasfese.4pu.com/3737736733734735/Hail-Mary-Jim-Knighthorse-series-3-by-J-R-Rain.pdf
    • http://cefasfese.4pu.com/9738732738733736/The-Seventh-Mesa-by-Mary-Summer-Rain.pdf
    • http://cefasfese.4pu.com/1738734734739/Austin-Entertains-by-Texas-Junior-League-Of-Austin.pdf
    • http://cefasfese.4pu.com/2739738737733/Henrietta-King-Loving-the-Land-by-Mary-Dodson-Wade.pdf
    • http://cefasfese.4pu.com/1731735731734730732/Forty-Days-and-Forty-Nights-Rain-Rain-Rain-by-Joan-Gross.pdf
    • http://cefasfese.4pu.com/2739738739731730/Through-Rain-and-Missing-Mantaurs-Elemental-Rain-1-by-Jeanne-Marcella.pdf
    • http://cefasfese.4pu.com/3738737734731737/Driving-Rain-Rain-Chaser-2-by-Sierra-Dean.pdf
    • http://cefasfese.4pu.com/1731738733738739731/November-Rain-Fire-and-Rain-4-by-Daisy-Harris.pdf
    • http://cefasfese.4pu.com/9735736736738732/The-Rain-Falls-Like-Rain-Poems-by-David-Helwig.pdf
    • http://cefasfese.4pu.com/1731736737733734/Action-Hero-Rain-by-Rain-Fields.pdf
    • http://cefasfese.4pu.com/1735735730732737/The-Rain-Rain-Trilogy-1-by-Joseph-A-Turkot.pdf
    • http://cefasfese.4pu.com/1731736736738738/Adventure-Atlantis-Rain-by-Rain-Fields.pdf
    • http://cefasfese.4pu.com/1738732735730738/Black-Rain-Let-it-Rain-1-by-Jettie-Woodruff.pdf
    • http://cefasfese.4pu.com/2738737739736730/O-Beulah-Land-Beulah-Quintet-2-by-Mary-Lee-Settle.pdf
    • http://cefasfese.4pu.com/1731736730730732/Race-Car-Rain-by-Rain-Fields.pdf
    • http://cefasfese.4pu.com/3730738739735736/Chef-Rain-by-Rain-Fields.pdf
    • http://cefasfese.4pu.com/1731736737732731/Fireman-Rain-by-Rain-Fields.pdf
    • http://cefasfese.4pu.com/1730737737733734730/The-Women-of-Easter-Encounter-the-Savior-with-Mary-of-Bethany-Mary-of-Nazareth-and-Mary-Magdalene-by-Liz-Curtis-Higgs.pdf

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