Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a1ae4cf887d101e…

MALICIOUS

PDF

11.5 KB Created: 2015-07-15 14:37:57 +04:00 Authoring application: DOMPDF
MD5: 37ce6035f59e2fb27b5c68f6c8086654 SHA-1: 4d66e88bd066d1331328886858a74b54f473b321 SHA-256: 1a1ae4cf887d101e7d54b9b7ca17ae102ed693eaf91ad63d18d728b6ee9e1741
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body also contains text related to financial trading and includes many of these same URLs. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves tricking the user into clicking these links, which likely lead to phishing or malware download sites.

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=1745.1&wehsa=1&pdf=1745
    • http://bmwt.pt/index.php?article=1512.2&qvacx=2&pdf=1512
    • http://www.lole.cl/index.php?article=312.1&fadfz=1&pdf=312
    • http://photo-file.ru/index.php?article=1341.1&wehsa=1&pdf=1341
    • http://marmoleraflores.com/index.php?article=155.2&qultr=2&pdf=155
    • http://photo-file.ru/index.php?article=2223.1&wehsa=1&pdf=2223
    • http://motorsportroden.nl/index.php?article=1951.2&onaih=2&pdf=1951
    • http://camus-sarl.fr/index.php?article=226.2&fnxpz=2&pdf=226
    • http://websitedesignindelhi.co.in/index.php?article=423.1&uoohx=1&pdf=423
    • http://photo-file.ru/index.php?article=849.1&wehsa=1&pdf=849
    • http://photo-file.ru/index.php?article=810.1&wehsa=1&pdf=810
    • http://photo-file.ru/index.php?article=1704.1&wehsa=1&pdf=1704
    • http://www.mantrabeautybar.ca/index.php?article=661.1&rukbv=1&pdf=661
    • http://photo-file.ru/index.php?article=542.1&wehsa=1&pdf=542
    • http://asinvestmentgroup.com/index.php?article=1180.1&jckgl=1&pdf=1180
    • http://photo-file.ru/index.php?article=174.1&wehsa=1&pdf=174
    • http://razan.com.ua/index.php?article=339.1&vafyr=1&pdf=339

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