Malicious PDF — malware analysis report

Static analysis result for SHA-256 60dcf23f89eaf628…

MALICIOUS

PDF

18.7 KB Created: 2019-11-07 23:06:14 +00:00 Authoring application: mPDF 5.7
MD5: 591c589f07c85feaa281790ac4d40506 SHA-1: 645009ac5006d6a84792d2f5a8f64cad504e27af SHA-256: 60dcf23f89eaf628da78385c6770617053c734848a989a63f024bde9199c4f93
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. While the ML classifier strongly suggests maliciousness, the specific intent beyond SEO manipulation or potentially hosting further malicious content is unclear due to the lack of executable scripts. The primary finding is the mass of external links, which is a common tactic for distributing malicious content or manipulating search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/8739731734736/The-Kenneth-Williams-Diaries-by-Kenneth-Williams.pdf
    • http://cefasfese.4pu.com/4733738733739730/Covered-Wagon-Women-Volume-2-Diaries-and-Letters-from-the-Western-Trails-1850-by-Kenneth-L-Holmes.pdf
    • http://cefasfese.4pu.com/3730739737732738/Cooking-at-Home-Williams-Sonoma-by-Chuck-Williams.pdf
    • http://cefasfese.4pu.com/3739734734734731/Kenneth-Anger-A-Demonic-Visionary-by-Kenneth-Anger.pdf
    • http://cefasfese.4pu.com/3733739730739738/The-Kenneth-Anderson-Omnibus-Volume-2-by-Kenneth-Anderson.pdf
    • http://cefasfese.4pu.com/3739731739736732/A-Narrative-of-Events-since-the-First-of-August-1834-by-James-Williams-an-Apprenticed-Labourer-in-Jamaica-by-James-Williams.pdf
    • http://cefasfese.4pu.com/4731737739739730/The-Complete-Writings-of-Roger-Williams---Volume-3-Bloudy-Tenent-of-Persecution-by-Roger-Williams.pdf
    • http://cefasfese.4pu.com/5739732732732732/The-Seventh-Octave-The-Early-Writings-of-Saul-Williams-by-Saul-Williams.pdf
    • http://cefasfese.4pu.com/4732731731731733/Covered-Wagon-Women-Diaries-and-Letters-from-the-Western-Trails-1840-1849-Covered-Wagon-Women-1-by-Kenneth-L-Holmes.pdf
    • http://cefasfese.4pu.com/1731738733738735737/-The-Exiled-Queen-The-Seven-Realms-Series-Book-2-By-Cinda-Williams-Chima-published-November-2011-by-Cinda-Williams-Chima.pdf
    • http://cefasfese.4pu.com/9732731730731/Magic-Dirt-The-Best-of-Sean-Williams-by-Sean-Williams.pdf
    • http://cefasfese.4pu.com/5730732730735738/The-Frontier-by-Kenneth-Tam.pdf
    • http://cefasfese.4pu.com/5730731739730733/The-Grasslands-by-Kenneth-Tam.pdf
    • http://cefasfese.4pu.com/3738738734739734/Cliffourd-the-Big-Red-God-by-Kenneth-Hite.pdf
    • http://cefasfese.4pu.com/4730733738738/Arundel-by-Kenneth-Roberts.pdf
    • http://cefasfese.4pu.com/4730732737731730/Peloponnesian-War-by-Kenneth-W-Harl.pdf
    • http://cefasfese.4pu.com/2735735732733731/The-Causes-of-the-Civil-War-by-Kenneth-M-Stampp.pdf
    • http://cefasfese.4pu.com/6733733734739738/Hamlet-by-Kenneth-Branagh.pdf
    • http://cefasfese.4pu.com/3738736732730731/This-Is-The-Jungle-by-Kenneth-Anderson.pdf
    • http://cefasfese.4pu.com/1731739738730730736/The-Wrong-Man-Out-by-Kenneth-J-Ratajczak.pdf

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