Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ae6c592aff554f…

MALICIOUS

PDF

13.1 KB Created: 2015-07-15 05:48:41 +04:00 Authoring application: DOMPDF
MD5: 701209042f3aec62a18f17586bc9a309 SHA-1: e8204f9ef555a4712f3213fe903ad68b66965e07 SHA-256: 58ae6c592aff554fe604ca9fab1f43a057b49bbe663f3fd3911bcf73d11b1deb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to various domains, many of which appear to be part of an SEO link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves redirecting users to these external sites, likely to serve further malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8856

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://primetimerecords.com/index.php?article=1116.1&cvsqx=1&pdf=1116
    • http://sennexdesign.com/index.php?article=935.1&nonzs=1&pdf=935
    • http://cierzodemontana.com/index.php?article=1137.7&vfjgt=7&pdf=1137
    • http://primetimerecords.com/index.php?article=1863.1&cvsqx=1&pdf=1863
    • http://phillipsandcoinc.com/index.php?article=1151.1&sxlyu=1&pdf=1151
    • http://primetimerecords.com/index.php?article=45.1&cvsqx=1&pdf=45
    • http://gchrismanelectric.com/index.php?article=729.1&txuhv=1&pdf=729
    • http://www.pieuvre-electrique-toulousaine.fr/index.php?article=1493.1&otafi=1&pdf=1493
    • http://www.mantrabeautybar.ca/index.php?article=1502.1&rukbv=1&pdf=1502
    • http://primetimerecords.com/index.php?article=132.1&cvsqx=1&pdf=132
    • http://primetimerecords.com/index.php?article=1936.1&cvsqx=1&pdf=1936
    • http://primetimerecords.com/index.php?article=2100.1&cvsqx=1&pdf=2100
    • http://turismoarteixo.com/index.php?article=2013.4&xcanf=4&pdf=2013
    • http://primetimerecords.com/index.php?article=1822.1&cvsqx=1&pdf=1822
    • http://egliseviechretienne.com/index.php?article=2027.5&fkyfd=5&pdf=2027
    • http://primetimerecords.com/index.php?article=1145.1&cvsqx=1&pdf=1145
    • http://marjangecevic.com/index.php?article=753.1&vgslo=1&pdf=753

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