Malicious PDF — malware analysis report

Static analysis result for SHA-256 552475206dd4e0b0…

MALICIOUS

PDF

11.7 KB Created: 2015-07-15 14:38:17 +04:00 Authoring application: DOMPDF
MD5: 674e69651da258325894aa50e503fa46 SHA-1: 6571e4cce5513015605b08072aef2baf6046d798 SHA-256: 552475206dd4e0b0fd15d0b0125d31de916983c89dfe2033bec416d52743a3dd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to SEO-optimized websites. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external link farm, suggesting the PDF's primary purpose is to redirect users to these sites. The ML classifier also flagged the PDF as malicious. No scripts were extracted, but the extensive URL list strongly suggests a redirection or content-luring attack pattern.

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://photo-file.ru/index.php?article=1204.1&wehsa=1&pdf=1204
    • http://morlockfamily.pl/index.php?article=1349.5&qpowq=5&pdf=1349
    • http://heathervincentlandscapes.com.au/index.php?article=1036.1&bsylx=1&pdf=1036
    • http://photo-file.ru/index.php?article=783.1&wehsa=1&pdf=783
    • http://larasstore.com/index.php?article=1712.2&qcpsq=2&pdf=1712
    • http://photo-file.ru/index.php?article=2278.1&wehsa=1&pdf=2278
    • http://upkartfashion.com/index.php?article=246.1&gggrk=1&pdf=246
    • http://hotrodderclassifieds.com/index.php?article=1223.1&hjjgr=1&pdf=1223
    • http://massiv-holz-moebel.de/index.php?article=953.1&onxqu=1&pdf=953
    • http://photo-file.ru/index.php?article=184.1&wehsa=1&pdf=184
    • http://photo-file.ru/index.php?article=1559.1&wehsa=1&pdf=1559
    • http://photo-file.ru/index.php?article=1508.1&wehsa=1&pdf=1508
    • http://stmarkame.org/index.php?article=1043.1&qsacf=1&pdf=1043
    • http://photo-file.ru/index.php?article=1139.1&wehsa=1&pdf=1139
    • http://msobo.fr/index.php?article=2322.2&dfkro=2&pdf=2322
    • http://photo-file.ru/index.php?article=2288.1&wehsa=1&pdf=2288
    • http://www.mantrabeautybar.ca/index.php?article=1392.1&rukbv=1&pdf=1392

Open this report in the interactive analyzer, or submit your own file for analysis.