Malicious PDF — malware analysis report

Static analysis result for SHA-256 478f43d9893a566b…

MALICIOUS

PDF

208.2 KB Created: 2022-02-07 07:08:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: e808eaeba67e5db85217351558a357d2 SHA-1: 26689f6adba2ee4054e8d2ff0b340b1c074e283f SHA-256: 478f43d9893a566b1d4e109ec52e0261826f5df2fd5633e5869db2669e44d39a
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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://yoyep.co.za/XSRYdR1H?utm_term=sony+vegas+pro+16++free PDF link annotation
    • https://sibois.eu/userfiles/file/61937144198.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/34450582357.pdfIn PDF document text
    • http://studiopiergentili.it/userfiles/files/72711275747.pdfIn PDF document text
    • https://sanipacific.com/attachment/file/73324831863.pdfIn PDF document text
    • http://bf4.nim.ru/userfiles/files/88225106634.pdfIn PDF document text
    • https://vico-inmobiliaria.com/ckfinder/userfiles/files/somemadenubemepowaba.pdfIn PDF document text
    • https://g-mtcc.com/motakamel/Ups/files/71165784340.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/medias/wasutuso.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a13f004dba---43920820146.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/f2ed990f672f01507424665a85e83465/xasagebifajaligikenob.pdfIn PDF document text
    • https://www.ttmagazin.com/assets/admin/js/plugins/kcfinder/upload/files/mikuromukogek.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/telejexemipuzasewabisaku.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/94453216112.pdfIn PDF document text
    • http://architettoangeli.it/userfiles/files/kamaseb.pdfIn PDF document text
    • http://1yunnan.com/ckfinder/userfiles/files/34195683409.pdfIn PDF document text
    • http://apartamentgizycko.pl/files/file/digoxesilidu.pdfIn PDF document text
    • http://chanassociation.org/uploads/file/6538592217.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161d403df0c0b4---82215536946.pdfIn PDF document text
    • https://www.phutungnganhmay.com.vn/kcfinder/upload/files/palekijoboz.pdfIn PDF document text
    • https://cahayaapi1.com/contents//files/34371175264.pdfIn PDF document text
    • http://hcm-invoice.vn/hinhanh_fckeditor/file/ritowanolumagilipujifarev.pdfIn PDF document text
    • https://everywheregenes.com/uploadfile/qu26_qu106_com/files/44025983331.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/015e9727747c6e23b615fd11c581c2a2/18985193174.pdfIn PDF document text
    • http://shesob.com/file/files/rapebusebolopofurevu.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_off0002d2c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2C3 10772 bytes
SHA-256: a85f951a099ad1defc1853151784e2adf403135ca66d05bd6eb0eb6a2533c792
font_01_sfnt_off0002ebc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBC8 18260 bytes
SHA-256: 721d799b0b1461cd750a4e67fbe004cf34b91f8724a34ee34d62346366d0dab2
font_02_sfnt_off00031ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AE5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9