Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f4aa73fd4367a2…

MALICIOUS

PDF

16.0 KB Created: 2019-05-02 07:29:24 +01:00 Authoring application: mPDF 5.7
MD5: 3b30a0eff4642220893ddb1566dfce75 SHA-1: ec8781ff2fe66824816ddf650d2180feaaafc64b SHA-256: e8f4aa73fd4367a2184e412d9b5be20aefda170f8eba08c9d6eeef3b175565be
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a link farm, with 22 external PDF links embedded within the document. The majority of these links point to the same domain, 'cefasfese.4pu.com', and appear to be structured for SEO purposes. While the document body is unreadable, the presence of numerous links suggests an attempt to direct users to external content, potentially for phishing or malware distribution.

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/2732730734732737/Brand-New-Ancients-by-Kate-Tempest.pdf
    • http://cefasfese.4pu.com/1730739736731733734/The-Bricks-that-Built-the-Houses-by-Kate-Tempest.pdf
    • http://cefasfese.4pu.com/1731736735739736731/Chaos-Undercover-Eine-E-Book-Only-Kurzgeschichte-mit-Kate-O-Hare-by-Janet-Evanovich.pdf
    • http://cefasfese.4pu.com/1738737734732736/Tempest-Tempest-1-by-Julie-Cross.pdf
    • http://cefasfese.4pu.com/3732738736732738/Edge-of-Chaos-Sons-of-Chaos-MC-1-by-Brynn-O-39-Connor.pdf
    • http://cefasfese.4pu.com/3735738730738738/Chaos-Abounds-Soldiers-of-Chaos-1-by-A-A-Askevold.pdf
    • http://cefasfese.4pu.com/4738732738733739/Deception-and-Chaos-Chaos-1-by-S-M-Soto.pdf
    • http://cefasfese.4pu.com/4737733739738735/Chaos-Walking-The-Complete-Trilogy-Chaos-Walking-1-3-by-Patrick-Ness.pdf
    • http://cefasfese.4pu.com/6734730736738733/Peoples-of-the-Sea-A-Reconstruction-of-Ancient-History-A-Continuation-of-the-Ages-in-Chaos-Series-Ages-in-Chaos-series-2-by-Immanuel-Velikovsky.pdf
    • http://cefasfese.4pu.com/3735735738736/Chaos-Walking-A-Trilogy-Chaos-Walking-1-3-by-Patrick-Ness.pdf
    • http://cefasfese.4pu.com/4739737736736739/Hunters-of-Chaos-Hunters-of-Chaos-1-by-Crystal-Vel-squez.pdf
    • http://cefasfese.4pu.com/4736733737733737/Constellation-of-Chaos-Constellation-of-Chaos-1-by-Laura-Sebastian.pdf
    • http://cefasfese.4pu.com/3734734735731736/Chaos-Rises-Chaos-Rises-1-by-Pippa-DaCosta.pdf
    • http://cefasfese.4pu.com/4739738739732731/Kate-s-House-Kate-Alexander-2-by-Mary-Francis-Shura.pdf
    • http://cefasfese.4pu.com/1730739736732734737/Tempest-by-Cari-Z-.pdf
    • http://cefasfese.4pu.com/8739731731737/The-Trouble-with-Murder-Kate-Ryan-3-by-Kate-Sweeney.pdf
    • http://cefasfese.4pu.com/7733735735738733/The-Tempest-by-William-Shakespeare.pdf
    • http://cefasfese.4pu.com/7732735735736737/The-Tempest-by-William-Shakespeare.pdf
    • http://cefasfese.4pu.com/1730739736732735730/Tempest-by-Catherine-Hart.pdf
    • http://cefasfese.4pu.com/1730739736732736738/Tempest-by-Dahlia-Rose.pdf
    • http://cefasfese.4pu.com/6734730736738733/Peoples-of-the-Sea-A-Reconstruction-of-Ancient-History-A-Continuation-of-