Malicious PDF — malware analysis report

Static analysis result for SHA-256 92cd6e9670bd3e42…

MALICIOUS

PDF

59.5 KB Created: 2021-05-09 00:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 4e34d256b3d0405d6c5ef7d3324c7956 SHA-1: e792fbc5ad18f4a29aa62de41280643f0c828b4e SHA-256: 92cd6e9670bd3e42974d2a2d9860fe261cb919155c395afe5a1fcde99c623498
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links pointing to compromised websites, specifically targeting WordPress upload directories. These links likely serve as a link farm to distribute malicious PDF files. The ML classifier also flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, but the presence of embedded URLs and the PDF structure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6954

Heuristics 4

  • 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://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/t4ocoq8ur9jht1b7rn8ln8c93i/59302437891.pdf In PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081c50e20ef6---potebu.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849bc3803fe.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608129ead457b---57108857090.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/f01a00865d1bade7987946116ece534c/vuxiziderexu.pdfIn PDF document text
    • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16084da95da83a---91190787677.pdfIn PDF document text
    • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/d1f826dcf94becc2c4c022b07ebc8afd/nomukojedewugelelojo.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160814c4a8a6e9---33629260361.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c43db0b4a---98328797119.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0a5f8d461---49704101853.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/68391855784.pdfIn PDF document text
    • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/449d4c60c446afe46914e829cc143135/69393924519.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/89a02a6f2a7a527614ba7c0d750fe449/desevuxepepakikuw.pdfIn PDF document text
    • http://aplus.to/userfiles/file/70167728552.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/19801252272.pdfIn PDF document text
    • http://aceonlinementors.com/userfiles/file/98792123410.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=groin+strain+rehab+protocol+pdfPDF link annotation

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