Malicious PDF — malware analysis report

Static analysis result for SHA-256 4780b686754a7b19…

MALICIOUS

PDF

241.4 KB Created: 2022-02-07 01:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 4dea8c02e113009e1a6cc445ae92673c SHA-1: 289665a7942def7820706664bc5164895cf20dc3 SHA-256: 4780b686754a7b1939b65605002e20025972eec733a50382e5773d27d0b23bd6
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8140

Heuristics 7

  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=kendo+ui+grid+edit+template PDF link annotation
    • http://aktifithalat.com/resimlerfiles/foxova.pdfIn PDF document text
    • http://mwflower.com/upimagesfile///12558879452.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/kedogipaterawed.pdfIn PDF document text
    • http://global-insurance-broker.de/downloads/19184991542.pdfIn PDF document text
    • https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/3b503f8tmqtblc3ocp4dpjcilm/luxijakibo.pdfIn PDF document text
    • http://idominjazz.com/fckeditor/userfiles/image/bulaxo.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/31928990668.pdfIn PDF document text
    • http://polethique.ch/uploads/files/50592335538.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/54790964063.pdfIn PDF document text
    • https://icon-studios.com/userfiles/file/36018270442.pdfIn PDF document text
    • http://contrast.no/ckfinder/userfiles/files/59259600053.pdfIn PDF document text
    • http://stilna-ya.com/_userfiles/file/boxaboxamevelu.pdfIn PDF document text
    • http://biosafety.biz/ckfinder/userfiles/files/12360026191.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/29d4857b10ffe33a8ecab0407defd0d8/1863723050.pdfIn PDF document text
    • http://noithatsah.com/webroot/img/files/xurufiba.pdfIn PDF document text
    • http://twinmd.ru/userfiles/file/1504895982.pdfIn PDF document text
    • https://cvzona.lt/resources/img/files/67896119875.pdfIn PDF document text
    • https://1877painters.com/FCKeditor/file/kezinuwibiwedis.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2021070200590673499.pdfIn PDF document text
    • https://kralpin.com/calisma2/files/uploads/24935326959.pdfIn PDF document text
    • http://bociany.sk/media/file/20489928282.pdfIn PDF document text
    • https://ivanda-commerce.hr/userfiles/file/nutudutob.pdfIn PDF document text
    • http://yuemeism.com/uploadfiles/files/56866056172.pdfIn PDF document text
    • http://straps.by/ckfinder/userfiles/files/ditulunewelezekifazobiwu.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/cec74abb7758cafa45f96f9d4d13f4ef/29134474743.pdfIn PDF document text
    • http://orosweb.hu/userfiles/file/janudozam.pdfIn PDF document text
    • https://charterboatdeliverance.com/uploads/files/tazunuvakegugoxop.pdfIn PDF document text
    • http://gonetcarbide.com/userfiles/file/LianMeng202112061219192577.pdfIn PDF document text
    • http://bortran.com/upload/image/file/20210706095843.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/gavigimipigekaleded.pdfIn PDF document text
    • http://perles-del-beya.com/userfiles/file/271941134.pdfIn PDF document text
    • http://trunglamdecor.com/uploads/userfiles/file/67233433024.pdfIn PDF document text
    • https://profession-your-dr.com/uploads/files/202111160450182017.pdfIn PDF document text
    • https://leifs-auto.dk/images/file/77042874313.pdfIn PDF document text
    • https://chemainus.gocascadia.com/images/cms/file/74671071134.pdfIn PDF document text
    • http://daisin1977.com/js/upload/files/40910119895.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_off00035405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35405 11632 bytes
SHA-256: 067011c0a95c762c13acef428288eddd08e2e0ec470697746f60e019956a32d4
font_01_sfnt_off00036f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36F83 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003869e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3869E 17924 bytes
SHA-256: dade27f544691ee108bf5f2dea24238538351df58d37fba8471115e28d724c32