Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ea0e0c180765da…

MALICIOUS

PDF

11.6 KB Created: 2015-07-15 14:43:05 +04:00 Authoring application: DOMPDF
MD5: 8ab643636c57210cdcc25d5fccd660f5 SHA-1: fb77cfe205dd162d05ce11341600a1f1819ed3b8 SHA-256: 06ea0e0c180765da45513846d983173dda43e69fde7ca426c1630dce314352b2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links pointing to various external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also flagged this file with high confidence. The embedded links likely serve to redirect users to malicious sites for further exploitation or to engage in SEO spamming. No scripts were extracted, but the presence of numerous external links suggests an attempt to lure users away from the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9282

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=2390.1&wehsa=1&pdf=2390
    • http://techaccesscorp.com/index.php?article=1339.2&dupth=2&pdf=1339
    • http://sandystraitssizzlers.com/index.php?article=37.1&kwbat=1&pdf=37
    • http://photo-file.ru/index.php?article=949.1&wehsa=1&pdf=949
    • http://madejalook.com/index.php?article=1029.1&ynlkg=1&pdf=1029
    • http://photo-file.ru/index.php?article=7.1&wehsa=1&pdf=7
    • http://barrainformativa.com/index.php?article=1844.2&eyxlg=2&pdf=1844
    • http://intelluride.co/index.php?article=1207.1&gdfls=1&pdf=1207
    • http://synerte.eu/index.php?article=1133.1&gwbut=1&pdf=1133
    • http://photo-file.ru/index.php?article=1957.1&wehsa=1&pdf=1957
    • http://photo-file.ru/index.php?article=1746.1&wehsa=1&pdf=1746
    • http://photo-file.ru/index.php?article=1812.1&wehsa=1&pdf=1812
    • http://amicosmeceutici.it/index.php?article=2447.1&replv=1&pdf=2447
    • http://photo-file.ru/index.php?article=211.1&wehsa=1&pdf=211
    • http://modart.com.tr/index.php?article=728.1&ykgew=1&pdf=728
    • http://photo-file.ru/index.php?article=106.1&wehsa=1&pdf=106
    • http://www.mantrabeautybar.ca/index.php?article=835.1&rukbv=1&pdf=835

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