Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dbb66f4914c204…

MALICIOUS

PDF

11.8 KB Created: 2015-07-15 16:25:47 +04:00 Authoring application: DOMPDF
MD5: e237df64e9e9e36380b4cc2bcc1a46b2 SHA-1: debe03227819f6be54bb9a9767d4dde0047a2a07 SHA-256: 95dbb66f4914c204a237b95403ea52a070a0d685359293a143c852c5af21b1fe
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded URLs pointing to various external websites, indicating a link farm or redirection scheme. The primary attack pattern appears to be SEO manipulation or directing users to potentially malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8959

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://chavagnes.com/index.php?article=1843.2&urwbo=2&pdf=1843
    • http://domedesigner.com/index.php?article=1949.1&urgni=1&pdf=1949
    • http://ipestka.pl/index.php?article=1521.1&qsxtx=1&pdf=1521
    • http://chavagnes.com/index.php?article=891.2&urwbo=2&pdf=891
    • http://www.mantrabeautybar.ca/index.php?article=2213.1&rukbv=1&pdf=2213
    • http://chavagnes.com/index.php?article=873.2&urwbo=2&pdf=873
    • http://escale-bien-etre-37.com/index.php?article=73.2&nalxy=2&pdf=73
    • http://cierzodemontana.com/index.php?article=811.7&vfjgt=7&pdf=811
    • http://immofina-solutions.com/index.php?article=829.1&gzogv=1&pdf=829
    • http://chavagnes.com/index.php?article=794.2&urwbo=2&pdf=794
    • http://chavagnes.com/index.php?article=2036.2&urwbo=2&pdf=2036
    • http://chavagnes.com/index.php?article=1300.2&urwbo=2&pdf=1300
    • http://satarahealthcare.com/index.php?article=2175.1&tpoox=1&pdf=2175
    • http://chavagnes.com/index.php?article=939.2&urwbo=2&pdf=939
    • http://kardiola.pl/index.php?article=598.1&xyjeh=1&pdf=598
    • http://chavagnes.com/index.php?article=607.2&urwbo=2&pdf=607
    • http://upkartfashion.com/index.php?article=2334.1&gggrk=1&pdf=2334

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