Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f4f486bb21e23cc…

MALICIOUS

PDF

11.6 KB Created: 2015-07-15 14:36:26 +04:00 Authoring application: DOMPDF
MD5: fcf2f901529168c442377d92cfc61d87 SHA-1: f075f78c5628ee1ce8dcda10ea844bdccc86af90 SHA-256: 6f4f486bb21e23cc3e34aeb048f8301521f3bfe41eac9213b67dfa69696342d3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by an ML classifier and contains a large number of embedded URLs, indicative of a link farm or SEO spam. While no scripts were explicitly extracted, the presence of numerous external links suggests an attempt to redirect users to potentially malicious websites. The document body itself is heavily obfuscated and contains many of these URLs, reinforcing the link farm hypothesis.

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=2494.1&wehsa=1&pdf=2494
    • http://techaccesscorp.com/index.php?article=518.2&dupth=2&pdf=518
    • http://www.mantrabeautybar.ca/index.php?article=813.1&rukbv=1&pdf=813
    • http://photo-file.ru/index.php?article=453.1&wehsa=1&pdf=453
    • http://hillcrestchurch.info/index.php?article=1769.1&jhrre=1&pdf=1769
    • http://photo-file.ru/index.php?article=2090.1&wehsa=1&pdf=2090
    • http://www.fabulaeventos.com.br/index.php?article=654.1&ipwdu=1&pdf=654
    • http://www.ivanandpamela.com/index.php?article=265.1&tekgj=1&pdf=265
    • http://www.robinprime.com/index.php?article=1206.1&bedxv=1&pdf=1206
    • http://photo-file.ru/index.php?article=2375.1&wehsa=1&pdf=2375
    • http://photo-file.ru/index.php?article=597.1&wehsa=1&pdf=597
    • http://photo-file.ru/index.php?article=492.1&wehsa=1&pdf=492
    • http://149clean.com/index.php?article=1852.2&lkxaf=2&pdf=1852
    • http://photo-file.ru/index.php?article=996.1&wehsa=1&pdf=996
    • http://cuisiplans.com/index.php?article=723.2&kjbws=2&pdf=723
    • http://photo-file.ru/index.php?article=63.1&wehsa=1&pdf=63
    • http://bmwt.pt/index.php?article=615.2&qvacx=2&pdf=615

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