Malicious PDF — malware analysis report

Static analysis result for SHA-256 24cedad8a1bb550e…

MALICIOUS

PDF

63.7 KB Created: 2021-09-01 22:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: cc45adbc6ce21261bf6ec144ca83ae15 SHA-1: a705761768fd68aca1b60b401b96d11124dde287 SHA-256: 24cedad8a1bb550e14eb825988ccf045c3a59afcac01967d2677b4e28323a3a0
154 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to compromised WordPress sites, specifically within form upload plugin directories. These links are designed to act as a link farm, potentially leading users to malicious content or phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9593

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 http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ff573c3e8---71278237455.pdf In PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0726df542---73010405330.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/8d1686a659f9a15bb375fe8fb6c37bab/jaripusupanerarapenaxof.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/kupulezi.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c2bb5a251c3---xodedosuxoririfosi.pdfIn PDF document text
    • http://innovad-ltd.com/userfiles/file/nabixabuk.pdfIn PDF document text
    • http://armanetti.com/images/74517794317.pdfIn PDF document text
    • http://byecook.com/ckupload/files/fabavilalavopov.pdfIn PDF document text
    • http://almawred-sy.com/files/adminfiles/files/jenenakodibakul.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8bcec18f10---45606738607.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/95a0ed5c4764cafca76462e6a3de50d8/xuxexaletuxonidodevemi.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edaaed8c34d---46067953628.pdfIn PDF document text
    • https://jaurrieta.net/USERFILES_JAURRIETA/files/45186266741.pdfIn PDF document text
    • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/0259c3813311f469bee8c34ff6698638/62600976227.pdfIn PDF document text
    • http://yds-wcv.jp/free_images/files/vepevizupajiwuno.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/67446480d23a191106d4acf1ec3c8ec5/45756158229.pdfIn PDF document text
    • http://ingenermarket.ru/userfiles/gufufoxugugaf.pdfIn PDF document text
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/gagubisobo.pdfIn PDF document text
    • http://opt-russtd.ru/data_center/upload_pictures/file/susakugofadovuxikudewox.pdfIn PDF document text
    • http://amandamaitland.com/images/file/81435808493.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16081c0ba72212---rawetagisikopajevagu.pdfIn PDF document text
    • https://ankaratemizlikcim.com/depo/sayfaresim/file/sakotutod.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/16095f8abe799b---63405520743.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/onnc7n27oo7b9v8m4fi4v8aps0/71720718537.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=what+learning+experiences+are+providedPDF link annotation