Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b2a142d3a371fae…

MALICIOUS

PDF

48.4 KB Created: 2021-09-09 23:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: fb2b6ef2336837999b6b7d7a48af1346 SHA-1: 1ac95779d7324abc3f9509c1e5388988ee039eeb SHA-256: 0b2a142d3a371faeecd466b3e7904afcada85c2d9d001df998729aa49d1b942a
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs and is flagged as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7185

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://takramaipai.com/mypicture/file/59224228681.pdf In PDF document text
    • http://dc-42351dc5a6b3.prshots.es/uploads/userfiles/1630764189/files/vorudi.pdfIn PDF document text
    • http://gopherandsquirrelcontrol.com/admin/images/file/61223395144.pdfIn PDF document text
    • http://xinge168.com/uploads/files/20210907231359_342336.pdfIn PDF document text
    • http://www.de.ruben.pl/ckfinder/userfiles/files/25966937717.pdfIn PDF document text
    • http://jcbcharpentebois.com/ressource/site-image/files/52296963618.pdfIn PDF document text
    • http://bibrka-school.org.ua/ckfinder/userfiles/files/7803170892.pdfIn PDF document text
    • http://maility.pl/_ADRESuserfiles/file/sopigeru.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/161383a0d36a30---navowofajezaset.pdfIn PDF document text
    • http://timebank.ru/sites/default/files/photos/pagefile/38412050899.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/contIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=vice+city+lite+apkPDF link annotation

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