Malicious PDF — malware analysis report

Static analysis result for SHA-256 1912a688626e84d3…

MALICIOUS

PDF

92.0 KB Created: 2021-08-10 06:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 609c50ad8c940814fde9704243a887b0 SHA-1: d9774b96a61dd49212b1ce6f08efa740b8d162b5 SHA-256: 1912a688626e84d31c1c9f2f9409495b032bb479dea0f9841c8c9c923d8a0c04
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 6

  • 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
  • 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://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090bec93ae49---20591823040.pdf In PDF document text
    • https://moolans.com/uploads/files/34852621908.pdfIn PDF document text
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/3357e04cfecda5650a3f1e94a3231fd2/83587374577.pdfIn PDF document text
    • https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/b4c8032b55bff92ade301fcb45476e69/lasuxowixavow.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/fususemujeluvelikefifa.pdfIn PDF document text
    • https://qnzar.com/files/73757114021.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16096462f8bece---butusozibeviviram.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3b15a6ec68---zexazogibi.pdfIn PDF document text
    • https://darshanam.com/ckfinder/userfiles/files/28683230474.pdfIn PDF document text
    • https://goacetours.com/ckfinder/userfiles/files/20042507895.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/vikuvodixujunawilipaxemo.pdfIn PDF document text
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/2r8rth178750viff0j2h6dqa2c/xararorekizud.pdfIn PDF document text
    • https://xuantruongtech.com/images/ckeditor/files/dufanowijaxojegalavawobo.pdfIn PDF document text
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/67da98277247d89007bec651241ed4de/tukufowasuxaru.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f9d6b76dc---pulopepusenebobel.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/zelonomurozalegusewova.pdfIn PDF document text
    • https://asi-filter.pl/files/file/80307406838.pdfIn PDF document text
    • https://nistd.in/userfiles/file/17574207687.pdfIn PDF document text
    • http://canvangdientu.com/images/file/69702725299.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f71b33cca3a---73982544337.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/65f1735c489ad2b38c35fa0b48c56ec2/dikomuvemumawomogobu.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ba5254ac9---33224658269.pdfIn PDF document text
    • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87225839771.pdfIn PDF document text
    • http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883fe7ab823---xetevuworowuwog.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a422c88711---sisojoxova.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+do+you+manually+regenerate+a+fleck+5600PDF 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_off0000ff24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF24 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11736 17812 bytes
SHA-256: 703e77a95a08fa1dbfa6a8c918d54c41c796b264e360b1a1d2ce38a03353ae24
font_02_sfnt_off00014602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14602 11368 bytes
SHA-256: 6410e31c033fc92086568799590e7866647db8b042568d030b115362aa2ecc58