Malicious PDF — malware analysis report

Static analysis result for SHA-256 87d8613b1ede4d82…

MALICIOUS

PDF

12.0 KB Created: 2015-07-15 05:48:33 +04:00 Authoring application: DOMPDF
MD5: 7eed5224bf9cdeb7fc9f6d023dd0d6c1 SHA-1: 1ecff494d3e4aa0974a9e521225ee20a90cd2142 SHA-256: 87d8613b1ede4d822fdb909d5f96f42a3a8f57b55dc3539d459da102de7c9853
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a large number of embedded URLs, indicative of a link farm or SEO spamming technique. The document body, though heavily obfuscated, also contains these URLs. The presence of these links suggests an attempt to direct users to potentially malicious websites, possibly for further exploitation or malware distribution.

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://primetimerecords.com/index.php?article=1224.1&cvsqx=1&pdf=1224
    • http://pathica.net/index.php?article=2417.1&ikbca=1&pdf=2417
    • http://www.wallart.com.es/index.php?article=768.1&dxunj=1&pdf=768
    • http://primetimerecords.com/index.php?article=1130.1&cvsqx=1&pdf=1130
    • http://heathervincentlandscapes.com.au/index.php?article=1868.1&bsylx=1&pdf=1868
    • http://primetimerecords.com/index.php?article=610.1&cvsqx=1&pdf=610
    • http://synerte.eu/index.php?article=937.1&gwbut=1&pdf=937
    • http://www.wallart.com.es/index.php?article=368.1&dxunj=1&pdf=368
    • http://www.mantrabeautybar.ca/index.php?article=1286.1&rukbv=1&pdf=1286
    • http://primetimerecords.com/index.php?article=1051.1&cvsqx=1&pdf=1051
    • http://primetimerecords.com/index.php?article=197.1&cvsqx=1&pdf=197
    • http://primetimerecords.com/index.php?article=1506.1&cvsqx=1&pdf=1506
    • http://morlockfamily.pl/index.php?article=1651.5&qpowq=5&pdf=1651
    • http://primetimerecords.com/index.php?article=453.1&cvsqx=1&pdf=453
    • http://gchrismanelectric.com/index.php?article=121.1&txuhv=1&pdf=121
    • http://primetimerecords.com/index.php?article=467.1&cvsqx=1&pdf=467
    • http://ingresoindonesia.com/index.php?article=1862.1&riycz=1&pdf=1862

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