Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4c3f8455e6d8d7f…

MALICIOUS

PDF

17.0 KB Created: 2020-03-17 03:58:03 +00:00 Authoring application: mPDF 5.7
MD5: fce83409e2c7aee3738d1caaf9f955f9 SHA-1: 04923d6b463a521bb1c0b94a71c3e100f1e071bf SHA-256: d4c3f8455e6d8d7fd08f6ff7640a9483cd658203c929dfb1be28a45626e81241
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, each pointing to a different PDF file. This behavior is indicative of a link farm or a phishing lure, aiming to direct users to external content. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body primarily consists of these URLs.

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://owlaokopdf.myhome.cx/881608167816381648161/Frankenstein-Gothic-Classic---The-Uncensored-1818-Edition-Science-Fiction-Classic-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/281688165816781688160/Frankenstein-The-Original-1818-Text-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/781658169816781648163/Frankenstein-or-The-Modern-Prometheus-The-1818-Text-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/881648169816081698160/Frankenstein-Mary-Shelley-The-Modern-Prometheus-Frankenstein-s-Monster-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/481658161816281668160/The-Mortal-Immortal-The-Complete-Supernatural-Short-Fiction-of-Mary-Shelley-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/58166816181678161/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581688164816981688164/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/281668165816881688169/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/781678166816581648160/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/881628160816781668163/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/881628164816181618163/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/681668167816181698167/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581668164816681668169/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581608163816781658166/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581638161816281668162/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/1816181618165816881688162/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/481608168816881638167/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/781678162816381688160/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/981618166816281668161/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581658164816381668167/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://owlaokopdf.myhome.cx/581688164816981688164/Frankenstein-by-Mary-Wollstonecraft

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