Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d5c103f1d4e21ea…

MALICIOUS

PDF

16.3 KB Created: 2019-05-03 06:27:14 +01:00 Authoring application: mPDF 5.7
MD5: 9261b8b0d21ee4b348ed6a75407ccbb1 SHA-1: d1e3e808ab676ed7072af5b9ce62250a4c04d68d SHA-256: 1d5c103f1d4e21eab04c66f2d66d7d99841608fcdb29c042d8e99f22a93b0e9e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents on the domain 'cefasfese.4pu.com'. This is indicative of a link farm or a distribution mechanism for further malicious content. While no scripts were extracted, the heuristic 'PDF_SEO_LINK_FARM' strongly suggests a malicious intent to manipulate search results or redirect users to potentially harmful sites. The presence of numerous links, even if individually marked as benign, contributes to the overall maliciousness of the document's purpose.

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/5738735734737735/Brazil-by-Regis-St-Louis.pdf
    • http://cefasfese.4pu.com/8734736730730733/The-Second-Angela-Brazil-s-Collected-Works-The-Princess-of-the-School-A-Fortunate-Term-and-More-12-Works-The-Schoolgirl-s-Sories-by-Angela-Brazil.pdf
    • http://cefasfese.4pu.com/5738735732736734/A-Multitude-of-Sins-by-H-E-Regis.pdf
    • http://cefasfese.4pu.com/5738735734735730/Polo-and-Lily-by-R-gis-Faller.pdf
    • http://cefasfese.4pu.com/6732735732735738/Deviant-Virtues-by-R-gis-Loisel.pdf
    • http://cefasfese.4pu.com/5738735733733731/A-Hero-for-Regis-by-Jack-Hoffenberg.pdf
    • http://cefasfese.4pu.com/5738735734738732/Polo-and-the-Magic-Flute-by-R-gis-Faller.pdf
    • http://cefasfese.4pu.com/6734739738736734/Helmets-of-ETO-A-Historical-and-Technical-Guide-by-Regis-Giard.pdf
    • http://cefasfese.4pu.com/1730736731731735731/Violine-F-hrer-f-r-linksh-ndige-Spieler-by-Adrian-Regis.pdf
    • http://cefasfese.4pu.com/5738735732734736/Sherlock-Holmes-and-the-Lyme-Regis-Horror-by-David-Ruffle.pdf
    • http://cefasfese.4pu.com/5738735732734733/Sonette-Grossdruck-In-Der-Ubersetzung-Von-Gottlob-Regis-by-William-Shakespeare.pdf
    • http://cefasfese.4pu.com/7730739732738730/Les-clefs-du-Royaume-Eternel-La-tradition-retrouv-e-du-disciple-aim-by-Regis-Moreau.pdf
    • http://cefasfese.4pu.com/1736739738731735/Brazil-Around-the-World-in-80-Men-7-by-Brandi-Ratliff.pdf
    • http://cefasfese.4pu.com/8739738739735735/Benfica-to-Brazil-by-Doron-Klemer.pdf
    • http://cefasfese.4pu.com/4732730736738732/The-Jolliest-School-of-All-by-Angela-Brazil.pdf
    • http://cefasfese.4pu.com/2732734733739731/Mark-s-Opening-Gambit-by-Lee-Brazil.pdf
    • http://cefasfese.4pu.com/3738730730733737/Prince-Charming-Inc-by-Jamie-Brazil.pdf
    • http://cefasfese.4pu.com/4732730738737735/Monitress-Merle-by-Angela-Brazil.pdf
    • http://cefasfese.4pu.com/5730734734732737/Goetia-the-Lesser-Key-of-Solomon-the-King-Lemegeton-Book-1-Clavicula-Salomonis-Regis-by-S-L-MacGregor-Mathers.pdf
    • http://cefasfese.4pu.com/5730730734735737/The-Luckiest-Girl-in-the-School-by-Angela-Brazil.pdf

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