Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8386581a1f9e821…

MALICIOUS

PDF

16.1 KB Created: 2019-06-13 11:31:53 +01:00 Authoring application: mPDF 5.7
MD5: 8c56f5b4e0330afeab173449000b6dad SHA-1: 335f16e92b6da257921d04818ca6cb5000b887c6 SHA-256: e8386581a1f9e821921a50efc08277d91c4837fb8340c81bd23e0635a2c20200
60 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on the suspicious domain 'cefasfese.4pu.com'. The document body is heavily obfuscated and does not provide clear textual lures. The primary attack pattern appears to be a link farm designed to drive traffic to potentially malicious content hosted on the external domain.

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/5732730730731731/One-Side-by-Himself-The-Life-and-Times-of-Lewis-Barney-1808-1894-by-Ronald-O-Barney.pdf
    • http://cefasfese.4pu.com/2735735737730733/Inside-Lincoln-s-Army-The-Diary-of-Marsena-Rudolph-Patrick-by-Marsena-Rudolph-Patrick.pdf
    • http://cefasfese.4pu.com/4733734735735731/The-Long-Midnight-of-Barney-Thomson-Barney-Thomson-1-by-Douglas-Lindsay.pdf
    • http://cefasfese.4pu.com/4733734735734734/The-Cutting-Edge-of-Barney-Thomson-Barney-Thomson-2-by-Douglas-Lindsay.pdf
    • http://cefasfese.4pu.com/9731735735730737/Hypershark-Der-Tod-aus-dem-Unterholz-by-Niels-Peter-Henning.pdf
    • http://cefasfese.4pu.com/5738734732731735/Assessing-the-Economic-Value-of-Anticancer-Therapies-by-Niels-Neymark.pdf
    • http://cefasfese.4pu.com/2739732737734735/The-Journey-of-Niels-Klim-to-the-World-Underground-by-Ludvig-Holberg.pdf
    • http://cefasfese.4pu.com/8732730732730732/Penombre-et-Ischemie-Cerebrale-Current-problems-in-neurology-by-Niels-A-Lassen.pdf
    • http://cefasfese.4pu.com/7737734734738735/Matthew-Barney-Cremaster-3-by-Matthew-Barney.pdf
    • http://cefasfese.4pu.com/1731738730731730736/Crashed-by-Kate-Rudolph.pdf
    • http://cefasfese.4pu.com/1730739731731739736/Wilma-Rudolph-by-PebbleGo.pdf
    • http://cefasfese.4pu.com/4730738730739731/Leadership-by-Rudolph-W-Giuliani.pdf
    • http://cefasfese.4pu.com/2737738738732733/Quake-by-Rudolph-Wurlitzer.pdf
    • http://cefasfese.4pu.com/6731737732737730/Erased-by-a-Tornado-by-Jessica-Rudolph.pdf
    • http://cefasfese.4pu.com/1731737739730735732/Das-Schweigen-der-Schweine-by-Alexa-Rudolph.pdf
    • http://cefasfese.4pu.com/3730736736737738/Wilma-Rudolph-Olympic-Runner-by-Jo-Harper.pdf
    • http://cefasfese.4pu.com/1731733737735735737/Wu-Ein-Deutscher-bei-den-Meistern-in-China-by-Frank-Rudolph.pdf
    • http://cefasfese.4pu.com/1731736738733739735/Das-Englische-Parlament-in-tausend-j-by-Rudolph-Gneist.pdf
    • http://cefasfese.4pu.com/1730739731730735732/Wilma-Rudolph-Olympic-Track-Star-by-Lee-Engfer.pdf
    • http://cefasfese.4pu.com/7736736730733730/The-Intimate-Life-of-Rudolph-Valentino-by-Jack-Scagnetti.pdf

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