Malicious PDF — malware analysis report

Static analysis result for SHA-256 474e125b0c5dbdba…

MALICIOUS

PDF

11.7 KB Created: 2015-07-15 05:52:02 +04:00 Authoring application: DOMPDF
MD5: 5534cd7633efca8e05f1eea97a5d3541 SHA-1: 091818891aaca0cd63c6b9bff21d0d17cdd1390e SHA-256: 474e125b0c5dbdbabfcc31481b97b401361109605172e832a12b7e36ff0941a6
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, forming a link farm designed to redirect users to various websites. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of external links, suggesting a tactic to distribute traffic or host malicious content across multiple domains. The ML classifier also flagged the PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the linked content beyond the link farm itself.

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://primetimerecords.com/index.php?article=1587.1&cvsqx=1&pdf=1587
    • http://ceotisnord.com/index.php?article=771.2&vcbzf=2&pdf=771
    • http://www.mantrabeautybar.ca/index.php?article=629.1&rukbv=1&pdf=629
    • http://primetimerecords.com/index.php?article=1726.1&cvsqx=1&pdf=1726
    • http://tienda.bosquedebambu.es/index.php?article=578.1&dksnc=1&pdf=578
    • http://primetimerecords.com/index.php?article=1779.1&cvsqx=1&pdf=1779
    • http://hillcrestchurch.info/index.php?article=662.1&jhrre=1&pdf=662
    • http://lifesweetner.es/index.php?article=2364.1&wddqo=1&pdf=2364
    • http://websitedesignindelhi.co.in/index.php?article=2248.1&uoohx=1&pdf=2248
    • http://primetimerecords.com/index.php?article=2394.1&cvsqx=1&pdf=2394
    • http://primetimerecords.com/index.php?article=809.1&cvsqx=1&pdf=809
    • http://primetimerecords.com/index.php?article=1383.1&cvsqx=1&pdf=1383
    • http://pamojaexpeditions.com/index.php?article=131.2&lqpte=2&pdf=131
    • http://primetimerecords.com/index.php?article=2329.1&cvsqx=1&pdf=2329
    • http://urbanindoorgs.com/index.php?article=459.1&lkbfl=1&pdf=459
    • http://primetimerecords.com/index.php?article=1763.1&cvsqx=1&pdf=1763
    • http://kameraturva.net/index.php?article=642.4&ghbga=4&pdf=642

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