Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3a89709bd3fad3…

MALICIOUS

PDF

233.3 KB Created: 2022-04-22 19:56:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 7d02134b343315d44ddc30a9fa1fa986 SHA-1: ecf41bda54ba0bc344a7a17d9b9e174fec7ae4e6 SHA-256: 5d3a89709bd3fad3c17846577e300ead73cdf89cf4a437583a5d8704afb27874
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7016

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://contabil-fiscal.ro/mm/file/pegejemofepomozedetawala.pdf In PDF document text
    • https://bavopubenexe.weebly.com/uploads/1/3/4/6/134678362/mefibatuzatevivur.pdfIn PDF document text
    • https://www.bsff.com/kcfinder/upload/files/gineliz.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/xikazuripo.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623476c050ad0---dedaxaduwoziseripejisupi.pdfIn PDF document text
    • http://www.bestofasco.cz/upload/files/nupatedujakos.pdfIn PDF document text
    • http://grgct.com/ckfinder/userfiles/files/21462895.pdfIn PDF document text
    • https://hunde-katzen.at/soubory/58877332904.pdfIn PDF document text
    • https://schokofontaene.de/idata/pilewawukoxokikutavilus.pdfIn PDF document text
    • https://www.yildiztto.com/kcfinder/upload/files/89413647300.pdfIn PDF document text
    • http://poliinc.com/upload/files/xokunuvudagazi.pdfIn PDF document text
    • http://phongbepfagor.com/userfiles/file/wawiva.pdfIn PDF document text
    • https://zuvopejibi.weebly.com/uploads/1/3/4/0/134017525/sepusapunos-gusikaxinires.pdfIn PDF document text
    • http://szjwwj.com/userfiles/file///nawixarapowukuj.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/duxizamipakopegi.pdfIn PDF document text
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/79e1274d19c7a37c9a0bc104b13f6de3/91572412338.pdfIn PDF document text
    • http://gestaocipa.com/public_html/Imagens/file/damawupesasuwafowopewol.pdfIn PDF document text
    • https://nafafewite.weebly.com/uploads/1/3/4/3/134337559/detuzodevosaj-pigakupune-tugax.pdfIn PDF document text
    • http://protectpharmaceuticals.com/Images/files/libusefuvo.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1620c4caeb26fc---72555144225.pdfIn PDF document text
    • http://dambi.pl/userfiles/file/jobixulawurawajotasofo.pdfIn PDF document text
    • https://satbietthu.com/luutru/files/82209326380.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1624d803f399e3---88201823853.pdfIn PDF document text
    • https://mtdind.aicsmindia.org/ckfinder/userfiles/files/52658367959.pdfIn PDF document text
    • https://zotizoju.weebly.com/uploads/1/3/5/3/135349435/1446434.pdfIn PDF document text
    • http://coyada.com/up_images/up_images/28090433160.pdfIn PDF document text
    • https://wroclawmodelshow.pl/ckfinder/userfiles/files/debekijaxifaz.pdfIn PDF document text
    • https://guidetudiant.elite-media.fr/media/zuxal.pdfIn PDF document text
    • https://o-dance.com/upload/files/mejokexuxogefagupexekekav.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=eulerian+numbers+petersen+pdfPDF link annotation
    • https://premium-house.uz/images/file/15156392436.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 extracted file (font_00_sfnt_off000330bf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000330bf.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000330bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000348d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x348D1 19860 bytes
SHA-256: ffc3d08886195010f6f6e54592c35d27421c0d8afb589956263854521dd812ae
font_02_sfnt_off00037d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37D62 10760 bytes
SHA-256: fcbf303cce4ab61d2cf4a1e6c1a165d7772754582ffda79e5391022692ed50e7