Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e337cbcca3acc7f…

MALICIOUS

PDF

78.0 KB Created: 2022-05-08 04:02:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e489ccf96c275142b916e78fc1f6ec29 SHA-1: 656cd184ad1688c5a34952823dccd24f89e23149 SHA-256: 4e337cbcca3acc7ff45414f7e094eec530ca8c742c1318a8da96493da3bdd545
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://loheb.co.za/YmrXLWy8?keyword=oh%20my%20soul%20casting%20crowns%20chords%20pdf%20free%20online%20song%20search PDF link annotation
    • https://rotolakudezi.weebly.com/uploads/1/3/4/0/134041133/148180.pdfIn PDF document text
    • http://pinblvd.com/file_space/files/68789760249.pdfIn PDF document text
    • https://suprastoc.ro/userfiles/file/jidapeposoxus.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/59816570040.pdfIn PDF document text
    • https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/93075686706.pdfIn PDF document text
    • http://sztarmedia.hu/_user/file/vugezanipexemis.pdfIn PDF document text
    • https://tafujopebipa.weebly.com/uploads/1/3/0/7/130774972/zakibedegux_zadalunojazukex.pdfIn PDF document text
    • http://khojedu.net/userfiles/file/vunalajaboj.pdfIn PDF document text
    • https://bistroestrada.com/images/files/mefagotobu.pdfIn PDF document text
    • https://movudari.weebly.com/uploads/1/3/1/0/131070737/nojozaniponazi-vezogubimuzuzul-wetaguzerenobun-vadamepope.pdfIn PDF document text
    • http://cuathepvangohaiduong.com/images/ckeditor/files/62582193410.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16206ee40d1e48---67876280352.pdfIn PDF document text
    • http://www.examnotice.in/uploads/files/41269748551.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/2022313189401622.pdfIn PDF document text
    • https://unosms.us/userfiles/file/2534699792.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/tepaberetedoj.pdfIn PDF document text
    • https://chinese-wall.tw/upload/files/dasugikarujusul.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1621377ab0b614---88642361337.pdfIn PDF document text
    • https://thebillionbottom.org/business_school/uploads/file/46640476084.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162499da949003---61394457945.pdfIn PDF document text
    • https://wfca-czech.cz/temp/userfiles/files/loxobudukelamotonus.pdfIn PDF document text
    • http://infosierra.es/images/editor/vuromefavowuket.pdfIn PDF document text
    • https://peoplehelppeople.net/uploads/File/jixuzifalotujot.pdfIn PDF document text
    • 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_off0000c891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC891 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A8 11392 bytes
SHA-256: db0832cc5164e795daa49df90bf54047307d704a9983b966e10c33b8bfa74d87
font_02_sfnt_off0000fb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB42 17476 bytes
SHA-256: 209c80b759d80febb9069be3f0f771a7cb52dc8c67d20bbd155de452c872728a