Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad67cd82d844da75…

MALICIOUS

PDF

208.4 KB Created: 2021-06-26 14:36:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: c4f6d89d09ce62548f882cc2a45f2ff6 SHA-1: aca490e383526e7e5e16db10622e30aadcc7b3ed SHA-256: ad67cd82d844da75c7a2ed247adad29e9e61f987e0e56e407c6560ed9330bb09
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to compromised WordPress sites, identified by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristic. The ML classifier and ClamAV detection also flagged this file as malicious. While no scripts were explicitly extracted, the presence of numerous links to potentially malicious content suggests an attempt to redirect users to phishing or malware distribution sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7061

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://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/1g4acnretdkpg674es4g9i8a6e/dupafevuzo.pdf In PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/joqdmr8t6tnnuh82ojklrilj8m/tonevixodimasozumeve.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/16083b0063468d---69041192549.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f12ed053f---xuzarugotasi.pdfIn PDF document text
    • https://alcoquimicos.com/ckfinder/userfiles/files/kazabavunorurudikiwuku.pdfIn PDF document text
    • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/d5d31532ce9025e632c7706cf0796189/varujogitupar.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/xijasevomesewagifog.pdfIn PDF document text
    • https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/659hb3k7e87ne8gd8jec5sh03g/90401023507.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be085db8d44---70838054312.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16097e321e32bc---33772326194.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b25f44e53e---38839192196.pdfIn PDF document text
    • http://asianaccounting.com/admin/fckeditor/userfiles/file/figuxolufokus.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/33e2cfb32f582424e971091b12b35d51/velofijafonimuwop.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/rnmpg73vgkoi831bag53n2l6j9/20594571059.pdfIn PDF document text
    • http://pechati-piter.ru/userfiles/file/lupalewisotarezepesuwuf.pdfIn PDF document text
    • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc59c274ecc---54762249350.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/0800723f960d66187289132e1972e190/23941346335.pdfIn PDF document text
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/885e1cf874ca0acadd9dc4598a6400a0/44274599905.pdfIn PDF document text
    • http://zonweringbelgie.nl/ckfinder/userfiles/files/99898529724.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/d9493a51bbedaecc8502b0bc725ec208/ketolidojapokejorikuwadak.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbb9ca151a---42344804542.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/werabonu.pdfIn PDF document text
    • http://creativeindustries.ru/uploads/userfiles/file/melewofikubuzosuwenisad.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/4e6f887727b2066e6b761ab7e2424189/82104869862.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=remarks+to+write+in+report+cardPDF link annotation

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