Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2088e580e11055…

MALICIOUS

PDF

18.5 KB Created: 2019-06-10 01:34:01 +01:00 Authoring application: mPDF 5.7 First seen: 2021-05-29
MD5: 385f5acf34f5d53d6805e969a80199c9 SHA-1: ca8880a35527a095d1bdd05fa67adefe3691b71c SHA-256: ab2088e580e11055b967ae558b2d93c873eb47d4eb9416fba4fd66bec97336f1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to malicious sites designed to trick the user into downloading further malware or providing sensitive information. No scripts were extracted, but the structure suggests an attempt to leverage the PDF viewer's link functionality.

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/1730732731738731731/Strike-Zone-Star-Trek-The-Next-Generation-5-by-Peter-David.pdf In PDF document text
    • http://cefasfese.4pu.com/1736732735732738/Worf-s-First-Adventure-Star-Trek-The-Next-Generation---Starfleet-Academy-1-by-Peter-David.pdfIn PDF document text
    • http://cefasfese.4pu.com/8736732736738739/Star-Trek-Die-n-chste-Generation---berlebende-Star-Trek-The-Next-Generation-4-by-Jean-Lorrah.pdfIn PDF document text
    • http://cefasfese.4pu.com/9738730739732737/Star-Trek---The-Next-Generation-08-Kalte-Berechnung---Die-Best-ndigkeit-der-Erinnerung-by-David-Mack.pdfIn PDF document text
    • http://cefasfese.4pu.com/6734735731735732/Renaissance-Star-Trek-New-Frontier-10-by-Peter-David.pdfIn PDF document text
    • http://cefasfese.4pu.com/9731731733737/Once-Burned-Star-Trek-The-Captain-s-Table-5-by-Peter-David.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730734731738731733/Star-Trek---The-Next-Generation-2-Widerstand-by-J-M-Dillard.pdfIn PDF document text
    • http://cefasfese.4pu.com/8734733736735734/Possession-Star-Trek-The-Next-Generation-40-by-J-M-Dillard.pdfIn PDF document text
    • http://cefasfese.4pu.com/4735737731736731/War-Drums-Star-Trek-The-Next-Generation-23-by-John-Vornholt.pdfIn PDF document text
    • http://cefasfese.4pu.com/9734738736730737/Contamination-Star-Trek-the-Next-Generation-16-by-John-Vornholt.pdfIn PDF document text
    • http://cefasfese.4pu.com/4735737731732730/Survivors-Star-Trek-The-Next-Generation-4-by-Jean-Lorrah.pdfIn PDF document text
    • http://cefasfese.4pu.com/9731730733730/Star-Trek-The-Next-Generation-Crossover-by-Michael-Jan-Friedman.pdfIn PDF document text
    • http://cefasfese.4pu.com/8731734734736735/Star-Trek---The-Next-Generation-11-Das-Licht-der-Fantasie-by-Jeffrey-Lang.pdfIn PDF document text
    • http://cefasfese.4pu.com/6732736735739730/Immortal-Coil-Star-Trek-The-Next-Generation-64-by-Jeffrey-Lang.pdfIn PDF document text
    • http://cefasfese.4pu.com/9730730731736733/Den-Frieden-verlieren-Star-Trek-The-Next-Generation-6-by-William-Leisner.pdfIn PDF document text
    • http://cefasfese.4pu.com/3732733738739736/Star-Trek-The-Next-Generation-Doctor-Who-Assimilation2-Volume-1-by-Scott-Tipton.pdfIn PDF document text
    • http://cefasfese.4pu.com/9738732734730734/Beyond-Star-Trek-From-Alien-Invasions-to-the-End-of-Time-The-Physics-of-Star-Trek-and-Beyond-2-by-Lawrence-M-Krauss.pdfIn PDF document text
    • http://cefasfese.4pu.com/1736733736736738/Lost-Souls-Star-Trek-Destiny-3-by-David-Mack.pdfIn PDF document text
    • http://cefasfese.4pu.com/1736734733739736/Gods-of-Night-Star-Trek-Destiny-1-by-David-Mack.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731730736735734738/The-Persistence-of-Memory-Star-Trek-TNG-Cold-Equations-1-by-David-Mack.pdfIn PDF document text