Malicious PDF — malware analysis report

Static analysis result for SHA-256 9673ee0d03f3e4d7…

MALICIOUS

PDF

49.9 KB Created: 2021-09-06 02:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 779f0dc48f238fb866f685a3b304ed7f SHA-1: 078c861d26ee1fac0ea66f578baf6da6dadc1d61 SHA-256: 9673ee0d03f3e4d71670eda51cc365c68ac6bb344e1ba12866b1243b054db577
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm directing to multiple compromised CMS upload storage locations, which in turn host other PDFs. This suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the exploitation of PDF vulnerabilities to execute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7858

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://fokusmedia.com/images/uploads/noxozijexosax.pdf In PDF document text
    • https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/e029a2f08def0844b207ff914611eec2/79840915777.pdfIn PDF document text
    • http://labcoop-jsc.com/wp-content/plugins/super-forms/uploads/php/files/fulvh9kka3c78hjcbkft47hv4q/59048272385.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/14456185907.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/ronedajomodud.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/sk5fvqlharik1t1u640melfr7m/fadivaz.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16082748b8298d---24514436711.pdfIn PDF document text
    • https://easybuildapp.com/files/uploaded/files/58558630049.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082ed92b513f---94777882080.pdfIn PDF document text
    • https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/66689105751.pdfIn PDF document text
    • http://songiadabinhphuoc.com/upload/ck/files/59859869300.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608423258168b---tevuk.pdfIn PDF document text
    • https://kaptenhoki.net/contents/files/49390819459.pdfIn PDF document text
    • http://hillhouseclassof1961.com/clients/c/c9/c9b049383fb65e98d0a4dcab6c176392/File/65596744626.pdfIn PDF document text
    • https://oiweld.com/wpIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=enzyme+amylase+pdfPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.