Malicious PDF — malware analysis report

Static analysis result for SHA-256 4458a8cc3d0f1550…

MALICIOUS

PDF

397.2 KB Created: 2022-01-30 19:26:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: f2af433eca2c68a542697d070a022eb8 SHA-1: 0c625deea38895fc896b388b8b43bf5ced6ec219 SHA-256: 4458a8cc3d0f15500d31bf9ecc83ca704fe30842f7eec7639a2f1db56823c3f2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7027

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
  • 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://podar.co.za/XSRYdR1H?utm_term=mithaiwala+question+answer PDF link annotation
    • https://mashura.co/userfiles/files/fuwirakosilubabekizuw.pdfIn PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/telamebapapu.pdfIn PDF document text
    • http://mxag.com/upload/browse/file/zigobimizepal.pdfIn PDF document text
    • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/kupudex.pdfIn PDF document text
    • http://whitedwarf.ru/public/images/ckfinder/files/zenafawisebijurokemovofo.pdfIn PDF document text
    • http://ikcem.org/userfiles/file///fewurowezanoxu.pdfIn PDF document text
    • https://autoserviziparlatore.it/filesUploads/file/98844033400.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1618d20d39fa95---71763934945.pdfIn PDF document text
    • http://studiocastigli.eu/userfiles/files/kenunok.pdfIn PDF document text
    • http://www.s4b.nl/upload/files/76913777220.pdfIn PDF document text
    • http://helderlive.nl/ckfinder/userfiles/files/welakesopopafafamutuj.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618b1b5cc1913---fudurepugeranesibikaves.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/3228eb26fa8bb67502a061f850c76d47/vixemokuposiwosigakewu.pdfIn PDF document text
    • https://manajrgvaaradhi.com/cms-uploads/files/25177122504.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/dusararuzegusur.pdfIn PDF document text
    • http://ktai.lmg.jp/upload/file/23030478050.pdfIn PDF document text
    • https://miminku3.com/contents/files/gadutagasivuxufasovutadoz.pdfIn PDF document text
    • https://ximatinhdongnai.com/app/webroot/files/images/pages/files/94248333683.pdfIn PDF document text
    • https://cardion.dk/gfx/fckimages/file/55907107423.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161eaecaadf6fb---kavezopisuluwifalefe.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/kilujofutodaveravawaz.pdfIn PDF document text
    • http://vivatbacchus.hu/files/file/63554641714.pdfIn PDF document text
    • http://servmed.net/userfiles/file/sopota.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/0122ca2944d5207dff6991dd47038459/56676630015.pdfIn PDF document text
    • https://extractos.assaludips.com/Proyectos_PHP/gestor/images/file/86951932573.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_off0005c6c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6C9 18244 bytes
SHA-256: cbf15e2522374e9b68ee4ebedc4b4fb32639f3acf15fde34cd0010bff4130147
font_01_sfnt_off0005f6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6CE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00060d72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D72 10532 bytes
SHA-256: 815e726d21ae315514bef01fb347cd46d5bb17725099ef9d0bb349bf94842f83