Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c71b533aee3b2cd…

MALICIOUS

PDF

54.6 KB Created: 2021-10-18 22:35:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: aa6b459646a96302f479f55e2ae304f8 SHA-1: 10241feddb64c82f9b9765c02d459522f8f63953 SHA-256: 2c71b533aee3b2cdf86af4a772f0580cc73a9356eaa1d0f2fe2d3884a5a75ae1
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically points to the document's nature as a non-clustered link farm on disposable hosting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6441

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 https://pixomot.ru/uplcv?utm_term=ford+4500+rds+eon+stereo+code PDF link annotation
    • http://ymmicro.com/files/files/zupigowosunilafaj.pdfIn PDF document text
    • http://anadolumatbaa42.com/genelresimler/file/lotumirokigutujavefe.pdfIn PDF document text
    • http://meskerjager.nl/media/files/31418902084.pdfIn PDF document text
    • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/datomomunonejamilokosu.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161677eae94c54---54580762712.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/rukuxilad.pdfIn PDF document text
    • https://aviatroglo.fr/IMG/file/29837040166.pdfIn PDF document text
    • http://pepinieres-soupe.com/userfiles/file/63747916547.pdfIn PDF document text
    • https://szabolcsipeter.com/userfiles/file/87338763127.pdfIn PDF document text
    • https://istanajp2.com/contents/files/wupefijapito.pdfIn PDF document text
    • https://safetyhanoi.com/userfiles/file/nosesivomedapegik.pdfIn PDF document text
    • http://ytbozhuo.com/upload/file/230615324268.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/kadutamivet.pdfIn PDF document text
    • http://getampedmag.com/ckfinder/userfiles/files/jekoro.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613b46e980b44---57957238609.pdfIn PDF document text
    • https://doublehair.center/upload/ckfinder/files/lipivixigafurexara.pdfIn PDF document text
    • https://badeluxe.com/userfiles/files/70231245933.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/5723403874.pdfIn PDF document text
    • http://ahppesticide.com/userfiles/file/miparugudirufatani.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/wunokoboju.pdfIn PDF document text
    • https://hanurichurch.org/ckfinder/userfiles/files/lujeni.pdfIn PDF document text
    • http://oldmotorsclub.com/files/file/96723193338.pdfIn PDF document text
    • https://anandalaya.in/resources/file/42958180623.pdfIn PDF document text
    • https://dbmotorbrokers.com/userfiles/file/gorapukipapa.pdfIn PDF document text

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