Malicious PDF — malware analysis report

Static analysis result for SHA-256 7933d9059ff31e78…

MALICIOUS

PDF

94.7 KB Created: 2021-07-20 06:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 10f2b266faaedafc3585eb78cd03dcd8 SHA-1: 7cca9ea949cc67440714ce21fd479f951764da67 SHA-256: 7933d9059ff31e78731c333c8d55cb0f2b4bd8ffd20fe1730d484466a5566065
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9786

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://catequesisnavarra.org/guiarte_userfiles/files/kawave.pdf In PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074242389867---12189477855.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2021060409462265.pdfIn PDF document text
    • https://taevlingar.se/images/pages/file/sixiwukaferudufutoji.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d67cc9b8d92---napewu.pdfIn PDF document text
    • http://abwessex.com/uploads/files/87305086679.pdfIn PDF document text
    • https://tese.in/ckfinder/userfiles/files/nijapujikerojuvetixuzizix.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e6ad0c79600---99716296951.pdfIn PDF document text
    • http://sb-78.ru/files/file/85890597871.pdfIn PDF document text
    • http://ducthanggroup.com/webroot/img/files/39018581432.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160927490ca43e---65945362533.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609842e50f53d---kenakijusevosijeve.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160eca95034d67---sesasepatabinakifigig.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/milil.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e58fd8b2bc2a262b1f76fafdd3b052dc/pibezemijixagor.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/3d19ab7a99ebd050e892cb230a795277/jofexa.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebc8126b88---22142293172.pdfIn PDF document text
    • https://childconcern.in/trila/userfiles/file/vafefo.pdfIn PDF document text
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/0620946a87fbd5749ff46a9e0841eb75/66592575228.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/8468a2b175b113dc1e35b7f7f736c439/56541888099.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/b915320307aedaa12672f9b7f41f9ae2/dawigajizuxiwowupu.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/c24066268b7569966970df7b6b6dfd9f/46464758838.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e06982a71---42836796707.pdfIn PDF document text
    • https://www.colours-of.com/wp-content/plugins/super-forms/uploads/php/files/ge4p2dvsbk95nqbknnjqpn0e56/57229900722.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/tevapamasopinilusedozi.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee9d9d1e3e---jolijarevubidepibadewe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+do+standard+form+for+polynomialsPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E5 18516 bytes
SHA-256: ba4f7a1e548ae405fc28d1fd371ce6d42ca9aecfea1990a3211415eb5afbb1ee
font_01_sfnt_off0001268e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1268E 10716 bytes
SHA-256: 33916399bfb359f905791417f0a79935d0d318bd523e3cc5e332ff634338154c
font_02_sfnt_off00013f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F22 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00015733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15733 16124 bytes
SHA-256: b272d717d805289a4da03d9a074c802b3db2db1c2c1ad95d7ef9c9cf95ceeabc