Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e39ce855658d72f…

MALICIOUS

PDF

359.1 KB Created: 2022-02-20 06:56:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 947615a9e6b73cab068e75bae92ff5c2 SHA-1: 58fb43bc7c56a845cb8372bdbdad7b1687cf0c46 SHA-256: 4e39ce855658d72f91ddb15559e7b2dfe1c835efbd9f0ee46f63f878a34e9fa8
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=cast+of+minority+report+tv+series PDF link annotation
    • http://prota.ru/upload/files/madolidesegewexig.pdfIn PDF document text
    • http://dungcubepgiangtrinh.com/webroot/img/files/45402733431.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/zosakojefolamulugipitepo.pdfIn PDF document text
    • https://fo-prefectures.com/pages/files/3674611290.pdfIn PDF document text
    • http://kfbma.org/files/fck/file/47550337373.pdfIn PDF document text
    • http://daiduongmetal.com/uploads/ckfinder/files/92110504271.pdfIn PDF document text
    • https://podereilmontaleo.it/writable/public/userfiles/file/50588864399.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/98080296721.pdfIn PDF document text
    • http://balone.net/_upload/file///xijenur.pdfIn PDF document text
    • https://zifu-tech.com/app/webroot/userfiles/files/11585665877.pdfIn PDF document text
    • http://deforma.it/userfiles/files/posubipokokudumu.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bd12ca4eb6a---62287531940.pdfIn PDF document text
    • https://majubesar.info/contents/files/11742363733.pdfIn PDF document text
    • http://info56.ru/userfiles/file/vimerazegamibebureniki.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bb7a666a61---jasiga.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/161522ce31f4b2---45200053382.pdfIn PDF document text
    • http://ttapps.mobiplay.tn/akram/know_news/admin/userfiles/file/12105675219.pdfIn PDF document text
    • https://tessuno.com/upload/files/61d47a20288cb.pdfIn PDF document text
    • https://akonis.ch/userfiles/files/xogarexoduxeguxotez.pdfIn PDF document text
    • http://www.pranabkumar.com/fckimages/file/nagavuv.pdfIn PDF document text
    • http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/15984256774.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/35703070687.pdfIn PDF document text
    • https://dukeofmarshall.com/ckfinder/userfiles/files/39924868148.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/2319376128e8f7b9fea0d371b188d97f/xefopatigenopojobegubugo.pdfIn PDF document text
    • http://digjamaica.com/app/webroot/files/56720329231.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/pinidaratafawobetezopor.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611607ca34f45---52380997149.pdfIn PDF document text
    • https://htapigroup3.com/contents/files/rumizakuzimune.pdfIn PDF document text
    • http://sb-78.ru/files/file/61514935235.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211948a9b583---gofisuzojidujakat.pdfIn PDF document text
    • http://hieuchuan.com/upload/files/lipapisixavegasu.pdfIn PDF document text
    • https://stonebuild.bg/f/uploads/files/sedeg.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000529bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x529BD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000540d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540D8 19052 bytes
SHA-256: 9651be65b5f061fd7f318ad0da16bcd90d0a659dc30210b989e88be1059e1a57
font_02_sfnt_off0005732d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5732D 10684 bytes
SHA-256: 42c773c72d42aa44e01a7e31a78390f650df354892db955a3d813ee3e722b716