Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd62f63647fd7c4…

MALICIOUS

PDF

61.7 KB Created: 2021-06-29 13:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 36258fefae3f7d3049ef3bce1f65a33f SHA-1: 1f658234543f3d1259c3e326947dcba93611f38c SHA-256: 3fd62f63647fd7c454e224ab0c8ac3876e0e629dc1ed5fd3752a36095cd44052
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs that point to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the nature of the detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4855

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crysiq.ru/uplcv?utm_term=embed+excel+file+in+pdf PDF link annotation
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/0e7bade72803800012076be2ad62bf75/68916588981.pdfIn PDF document text
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/129ddf2c3c65a69c99f03bd90e0e5186/55527091753.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16079f9483eb8d---bivax.pdfIn PDF document text
    • https://thai-airpark.com/ckfinder/userfiles/files/64097153701.pdfIn PDF document text
    • http://bielwod.com/userfiles/file/ximup.pdfIn PDF document text
    • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/065465cb7d908dda12b872bd07aa5e19/2680131105.pdfIn PDF document text
    • http://18554080.com/userfiles/file/58300463832.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/42399364672.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609dbf7174e46---mexevawinubexagox.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160b14eb8d8624---57437077197.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/80754051491.pdfIn PDF document text
    • http://bfr-bialapodlaska.pl/userfiles/file/7294298989.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/7a505ac0758e70fea7bb692187ee0f70/rawogawudimakedilotejotaz.pdfIn PDF document text
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/f8033f5ce71d25ac7303f97124a020e3/tevelametufuvofoviwak.pdfIn PDF document text
    • https://accu-split.com/userfiles/files/82414914435.pdfIn PDF document text
    • https://sfeerweter.nl/userfiles/files/peboxenexodafowoxibuvej.pdfIn PDF document text
    • http://ukrainski-rosyjski.pl/userfiles/file/68036655315.pdfIn PDF document text
    • https://techson-cctv.com/upload/file/43837609358.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083172d832c2---witiforewan.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/b8c26cf8c201d87ce1c924ecb7ac9bba/maxofik.pdfIn PDF document text
    • http://aeronautike.com/userfiles/file/tuxetidanogelalanugaja.pdfIn PDF document text
    • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/0nsc26fieamce53dp18uri9qto/70665890923.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/a5b5f04d89fbe0e1cb990def4c8a30ce/banajujad.pdfIn PDF document text

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