Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b47f67f53508c…

MALICIOUS

PDF

105.5 KB Created: 2021-07-14 08:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 727db14cf1864a907f3d82069a0323e1 SHA-1: dd59a2a1e15e40376a22e6e982279323eaf137a0 SHA-256: 793b47f67f53508c29ddb972b1dfe35dde925b80862e4d7aa5719e136ac2709d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9790

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://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/5b162265281ad89cb304a363d5e501a8/rilig.pdf In PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/kanpf3akoaraugjdlj5r298scv/91249020480.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160949ee9c0712---fawazimudifu.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0a4965b9df6d4efc09476ba8971ec832/27791469764.pdfIn PDF document text
    • http://patroha.hu/file/fodosovar.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/4530563006.pdfIn PDF document text
    • https://searchlink.org/userfiles//file/tigunifavox.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160712a9db702e---16562055340.pdfIn PDF document text
    • http://www.yoko-ono.be/images/userfiles/file/derojilosomesuv.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d5f271be8---guzixibuviwukinimupir.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/kasoramutirovakezakik.pdfIn PDF document text
    • http://oticonshop.net/ckfinder/userfiles/files/zukusewuraredanati.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1608255f0155aa---dewolutusuwiwowizabove.pdfIn PDF document text
    • http://broadmoor80.com/clients/866172/File/82112452299.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd91b847ee4---43262381054.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16080ac21a93fc---15579017822.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9903e7eb9---81178291443.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/8992a1c9f6e42d963c61df0da93d87d2/todajokomifigatajinawig.pdfIn PDF document text
    • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/017mbms92k5hh4smtcmpqvjom2/nupomapegole.pdfIn PDF document text
    • http://sun-green.nl/ckfinder/userfiles/files/sazozizixib.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9ec0dac28---17866226830.pdfIn PDF document text
    • http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/9774bef70e87c1c557b5cd53382cc076/tulonuzijewujoduxorenowun.pdfIn PDF document text
    • http://iphysiology.ru/upload/38481880060.pdfIn PDF document text
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/ltmlor618n8rptfhdurtdadcrd/sadefapozinovawovezevego.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607712151915f---lenofagimunesozu.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb92204c2b---gixojelovotodofezeruma.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=good+words+starting+with+u+to+describe+someonePDF 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_off000135a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135A7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00014db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14DB9 18080 bytes
SHA-256: edbcd08d2d383e9ad35d5a81d045512971e96470b8e960a0a566097fde8355a0
font_02_sfnt_off00017cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17CEF 11136 bytes
SHA-256: fe8ed9e7db4c48e29379c9453fd7b281bbd91860c2cfe190336183e5e0ed4dd7