Malicious PDF — malware analysis report

Static analysis result for SHA-256 58d3c23b6c33fccd…

MALICIOUS

PDF

12.2 KB Created: 2015-07-15 05:48:49 +04:00 Authoring application: DOMPDF
MD5: 832e1fc2cfd75a24583a86b0597c9384 SHA-1: 7dee5a4b5dcae3fbeb54ef7c129c3f2339bd73bb SHA-256: 58d3c23b6c33fccd86e39771203aa28188c5f7873a6d1ac99dacd3ef1a11ee80
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a large number of external links, indicative of a link farm or SEO spamming technique. The embedded URLs are likely used to redirect users to malicious websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8995

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=2250.1&cvsqx=1&pdf=2250
    • http://propertarian.net/index.php?article=117.1&jdxyr=1&pdf=117
    • http://www.mantrabeautybar.ca/index.php?article=27.1&rukbv=1&pdf=27
    • http://primetimerecords.com/index.php?article=389.1&cvsqx=1&pdf=389
    • http://turismoarteixo.com/index.php?article=464.4&xcanf=4&pdf=464
    • http://primetimerecords.com/index.php?article=236.1&cvsqx=1&pdf=236
    • http://www.lole.cl/index.php?article=670.1&fadfz=1&pdf=670
    • http://TomOn.tv/index.php?article=1307.1&oeyju=1&pdf=1307
    • http://aksoynet.nl/index.php?article=1236.2&cwiie=2&pdf=1236
    • http://primetimerecords.com/index.php?article=846.1&cvsqx=1&pdf=846
    • http://primetimerecords.com/index.php?article=294.1&cvsqx=1&pdf=294
    • http://primetimerecords.com/index.php?article=1328.1&cvsqx=1&pdf=1328
    • http://power-team.cz/index.php?article=2080.3&uwbuc=3&pdf=2080
    • http://primetimerecords.com/index.php?article=1955.1&cvsqx=1&pdf=1955
    • http://topservices.co.il/index.php?article=396.1&xujqf=1&pdf=396
    • http://primetimerecords.com/index.php?article=592.1&cvsqx=1&pdf=592
    • http://sennexdesign.com/index.php?article=1143.1&nonzs=1&pdf=1143

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