Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10de607d26859b6…

MALICIOUS

PDF

18.3 KB Created: 2019-04-30 02:40:19 +01:00 Authoring application: mPDF 5.7
MD5: b5e0e59f357edcd18ea89d32a375d009 SHA-1: d8075cd313361c4a9da3dc112d24c068795be6a8 SHA-256: e10de607d26859b6dc001dab5cef4993873225d9492222437ee89f2ec454b7f4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common tactic for SEO poisoning or distributing malicious content. While the ML classifier strongly indicates maliciousness, the specific intent beyond link farming is unclear due to the lack of executable scripts or readable document body text. The URLs themselves are flagged as confirmed benign, suggesting the maliciousness lies in the aggregation and potential redirection rather than the immediate destination.

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://xiixmcuin.linkpc.net/3204209203203/Flow-The-Psychology-of-Optimal-Experience-by-Mihaly-Csikszentmihalyi.pdf
    • http://xiixmcuin.linkpc.net/1201205205202205206/An-Introduction-to-Jung-s-Psychology-by-Frieda-Fordham.pdf
    • http://xiixmcuin.linkpc.net/4202205209205204/Hilgard-s-Introduction-to-Psychology-by-Rita-L-Atkinson.pdf
    • http://xiixmcuin.linkpc.net/5206200203202200/Introduction-to-Psychology-Vango-Card-by-Lester-A-Lefton.pdf
    • http://xiixmcuin.linkpc.net/1202208203201208/Dwarg-in-the-Seventh-Dimension-The-Aggie-Kellor-Experience-by-Tony-Lourensen.pdf
    • http://xiixmcuin.linkpc.net/1201200205205207209/Introduction-to-Materials-Management-by-J-R-Tony-Arnold.pdf
    • http://xiixmcuin.linkpc.net/1206206205209205/An-Introduction-to-the-Presidential-Trend-A-Concise-Narrative-of-One-of-the-Largest-Political-Trends-by-Tony-Fairfax.pdf
    • http://xiixmcuin.linkpc.net/3207208204203201/A-Dictionary-of-Dream-Symbols-With-an-Introduction-to-Dream-Psychology-by-Eric-Ackroyd.pdf
    • http://xiixmcuin.linkpc.net/3207208208208209/Psychology-of-Individual-and-Group-Differences-A-series-of-books-in-psychology-by-Lee-Willerman.pdf
    • http://xiixmcuin.linkpc.net/8202202202202206/Criminal-Psychology-Topics-in-Applied-Psychology-by-David-Canter.pdf
    • http://xiixmcuin.linkpc.net/3206200207208206/Humanistic-Psychology-A-Clinical-Manifesto-a-Critique-of-Clinical-Psychology-and-the-Need-for-Progressive-Alternatives-by-David-N-Elkins.pdf
    • http://xiixmcuin.linkpc.net/4203207202205208/Unpacked-Travel-Disaster-Stories-by-Tony-Wheeler-and-Other-Lonely-Planet-Authors-by-Tony-Wheeler.pdf
    • http://xiixmcuin.linkpc.net/7204202205202/Eye-To-Eye-by-Catherine-Jinks.pdf
    • http://xiixmcuin.linkpc.net/1200209209204201206/The-Inquisitor-by-Catherine-Jinks.pdf
    • http://xiixmcuin.linkpc.net/1200209209204205204/Spinning-Around-by-Catherine-Jinks.pdf
    • http://xiixmcuin.linkpc.net/1200209209205205207/The-Future-Trap-by-Catherine-Jinks.pdf
    • http://xiixmcuin.linkpc.net/1200209209204209204/First-Steps-in-Enameling-by-Jinks-McGrath.pdf
    • http://xiixmcuin.linkpc.net/3202205201206204/How-to-Catch-a-Bogle-by-Catherine-Jinks.pdf
    • http://xiixmcuin.linkpc.net/1200209209204208206/The-Rings-Book-by-Jinks-McGrath.pdf
    • http://xiixmcuin.linkpc.net/1208200202204203/Paranormal-Keepers-Paranormal-Keepers-1-by-Jen-Naumann.pdf