Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ed46a502209e76…

MALICIOUS

PDF

206.2 KB Created: 2021-06-03 12:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 7377a74a3d6af10d34a2f75490e054b0 SHA-1: 8875c4ac93ebdf13c284da67b66126fbfbf3fb37 SHA-256: 01ed46a502209e767bdff56d0d7dd78c9e426453e76f5b705c59213749546de0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to compromised WordPress upload directories, suggesting it is part of a phishing campaign to distribute malicious files. The embedded URL 'https://archism.ru/uplcv?utm_term=pearson+books+pdf+free+download' is presented as a lure for free book downloads, which is a common tactic for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9573

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
  • 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.
  • 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://archism.ru/uplcv?utm_term=pearson+books+pdf+free+download PDF link annotation
    • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f38ad5f803---64382859105.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078ae78c9e94---35185390329.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ad304738222---74918703399.pdfIn PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1cdf037a09---xapudadizadadomowir.pdfIn PDF document text
    • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/i0on3jdfq1omadurotgpaoj6kb/31953624707.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160812a201dc96---rugomabanigop.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/19343615687.pdfIn PDF document text
    • http://esejsc.com/upload/files/74380627014.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/wulofuxef.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/dotejegusiwakix.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0fad5dc1b---75774541700.pdfIn PDF document text
    • https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/c800b40a8a18de2f9d9ab50d97444cf1/zorepozadi.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a619e99fff1---vanevi.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b84faf2031c---kijoxilevumigeposezaw.pdfIn PDF document text
    • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/adc271f980a5698cdfe2cd9d3b660d7d/tubibepuxapare.pdfIn PDF document text