Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ae5c3ae5b8efdae…

MALICIOUS

PDF

15.0 KB Created: 2020-03-18 21:37:24 +00:00 Authoring application: mPDF 5.7
MD5: fa54f61457c94525061a732b33edaee0 SHA-1: fd67f794c530928c0097c1272ba3daf25c842cf7 SHA-256: 7ae5c3ae5b8efdae53531c5c2dc257fe2079f86f289f88ed5a0e39fbe0d286f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to external content, suggesting the PDF's primary purpose is to redirect users to a link farm. While no scripts were explicitly extracted, the ML_NYX_PDF_MALICIOUS heuristic indicates a high probability of malicious intent, likely related to the distribution of further malicious content or SEO spam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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://calistazz.myhome.cx/2864869869863867/The-Knave-of-Hearts-Rhymes-With-Love-5-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/2869861861861862/Along-Came-a-Duke-Rhymes-With-Love-1-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/5860863868865865/Have-You-Any-Rogues-Rhymes-With-Love-2-5-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/4867868865861868/Along-Came-a-Duke-Rhymes-With-Love-1-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/2865861869869/The-Viscount-Who-Lived-Down-the-Lane-Rhymes-With-Love-4-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/4867862868866862/Knave-of-Broken-Hearts-Love-in-Laguna-2-by-Tara-Lain.pdf
    • http://calistazz.myhome.cx/1861866865869863/Love-Letters-From-a-Duke-Bachelor-Chronicles-3-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/3861866866860863/Sea-Scoundrel-Knave-of-Hearts-1-by-Annette-Blair.pdf
    • http://calistazz.myhome.cx/4861867865868860/Captive-Scoundrel-Knave-of-Hearts-2-by-Annette-Blair.pdf
    • http://calistazz.myhome.cx/7862863865863867/Mad-About-the-Major-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/8863867864860867/Once-Tempted-Danvers-3-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/2865862861868866/How-I-Met-My-Countess-Bachelor-Chronicles-6-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/5864865869862869/Lila-Boyle-Heights-1-by-Elizabeth-Reyes.pdf
    • http://calistazz.myhome.cx/2868863866867860/Stealing-the-Bride-Danvers-2-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/8863867864860865/It-Takes-a-Hero-Danvers-4-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/5864865869863868/Beast-Boyle-Heights-2-by-Elizabeth-Reyes.pdf
    • http://calistazz.myhome.cx/2865862861868863/Confessions-of-a-Little-Black-Gown-Bachelor-Chronicles-4-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/2869866867864869/Lord-Langley-Is-Back-in-Town-Bachelor-Chronicles-8-by-Elizabeth-Boyle.pdf
    • http://calistazz.myhome.cx/1862860868863861/Waiting-Hearts-Country-Hearts-1-Radiant-Love-Series-by-Mila-Abey.pdf
    • http://calistazz.myhome.cx/2869861863865860/Stepping-Up-to-Love-Lakeside-Porches-1-by-Katie-O-39-Boyle.pdf

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