Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0e60747a0e4612…

MALICIOUS

PDF

84.2 KB Created: 2021-06-26 19:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 47ab592207d9433ddb4191bbfce0f6f9 SHA-1: 5d559669b55b4413a5ade55522dc65ab7f890119 SHA-256: 2d0e60747a0e46127598bd8162ca366c9ce8a664a3b8c853c07761bf9e1c0309
156 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to compromised WordPress upload directories, indicating a link farm designed to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery through these external links. No scripts were extracted, but the structure and URL analysis point to a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090a8b4d984c---moxadiwinibe.pdf In PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bc7b3dddf---92981767957.pdfIn PDF document text
    • https://bem-sa.com/img/file/xaramavawoluwa.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160acab40781c0---81504978894.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/4fa52d789bf588f24ffaa04d61a343df/11710863259.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/9d30e988302cd55f4787926434dab247/momazaz.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160b7688cbcc2c---zizefurenevavikijozogin.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16075a4ef2f2cd---wabubaluj.pdfIn PDF document text
    • http://didopack.com/files/59652968098.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d73a246a8---94640937006.pdfIn PDF document text
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/bc004e871ec7be969c6b5d3dd7107817/49458763987.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bc4dc7805ff---5795345903.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5d03a491b---46436461223.pdfIn PDF document text
    • http://aceonlinementors.com/userfiles/file/puvodidavefamupanuwo.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/407d777e7f4b0fcf4ef8c21abb8fb5df/gadedidumenopivikimiri.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e29ac7d500---46234606075.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/0f8bb30d7697567733fde655f82e0e95/sozevifum.pdfIn PDF document text
    • http://master-sign.ru/ckfinder/userfiles/files/69840752030.pdfIn PDF document text
    • http://tweddlefoto.com/files_contenidos/upload/files/93810167421.pdfIn PDF document text
    • http://vidol.nl/userfiles/file/10013026692.pdfIn PDF document text
    • http://orgue-chantepie.info/FCKeditor/upload/file/buforisexodufaj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=hyperopia+of+both+eyes+with+astigmatismPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE500 10988 bytes
SHA-256: 29ffd65a29d4ae8f433672732f1f075978d41d446dc0d28c13a659c81a95a2b1
font_01_sfnt_off0000fe5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE5C 17152 bytes
SHA-256: 8e51975baf32df2956d5044282632064b62e16199a47e72a751c90a9b3ef1cdf
font_02_sfnt_off00012b5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B5B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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