Malicious PDF — malware analysis report

Static analysis result for SHA-256 7935ad4bed6c8dd3…

MALICIOUS

PDF

284.5 KB Created: 2022-03-19 17:04:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: ca3aeb586bcb1cfd3f3b472ab73a99d8 SHA-1: 533c1d07c9353f5d09d8c7cc4841f03dac7996f3 SHA-256: 7935ad4bed6c8dd3d6813ad01b8d08e10d06758e0b0a5029a6ffb8b1045171b2
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6835

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://lovig.co.za/XSRYdR1H?utm_term=international+arbitration+guidelines PDF link annotation
    • http://henanshuangxin.com/d/files/berezevu.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620817bb88a9f---19603112806.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/11112980892.pdfIn PDF document text
    • http://huile-de-nigelle.info/userfiles/file/nujonipovutukezi.pdfIn PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225bca5ee8bd---forujabotununumuvejeli.pdfIn PDF document text
    • http://zavalinka.by/var/upload/file/vezuwovatonitu.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/81277691365.pdfIn PDF document text
    • http://taaltoetsvo.nl/userfiles/file/2859055039.pdfIn PDF document text
    • http://savvyroyalties.com/userfiles/file/77198165925.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/514a421c7bf6110a3073cd2a460f8950/13912658975.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/jokemulano.pdfIn PDF document text
    • https://kalashad.com/userfiles/file/jimazejebufebomisimuk.pdfIn PDF document text
    • http://zarya-lugansk.com/userfiles/file/54794525513.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621b43c2569a6---41893485255.pdfIn PDF document text
    • https://batdongsandothanh.vn/luutru/files/16011441705.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20220204031613.pdfIn PDF document text
    • https://kingdom.vn/userfiles/file/63219551010.pdfIn PDF document text
    • http://meubelenindex.nl/images/uploads/rufuvisa.pdfIn PDF document text
    • http://unternehmensberatung-hegenbarth.de/userfiles/file/todoz.pdfIn PDF document text
    • https://dangeloremodeling.com/nbloom/fckuploads/file/95044914446.pdfIn PDF document text
    • http://nguyenphat.com/public/default/ckeditor/files/57630702950.pdfIn PDF document text
    • https://maleki-group.ir/js/kcfinder/upload/files/loxewareliz.pdfIn PDF document text
    • https://ctsgroups.asia/images/file/57231398207.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/70795150991.pdfIn PDF document text
    • http://kepco-group.com/uploaded_files/userfiles/files/58667922483.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/i02lqqiovnaq4esgu5c3ogam87/vogukaxado.pdfIn PDF document text
    • http://lk-atomexpo.ru/web/js/kcfinder/upload/files/gotorazavekesonovisugige.pdfIn PDF document text
    • http://engelholm.boj.se/uploads/userfiles/files/pupalazizofimiditufo.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_off000402ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x402EA 10616 bytes
SHA-256: 9a8604728c7a989905ea7bbdc088b145526ef9e48513e5e38a56216febbafa2c
font_01_sfnt_off00041b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B0F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004322a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4322A 18424 bytes
SHA-256: 26ad24b89291bb4b462d0c11a9ea070ddbb211f13c666df521db74d62dcffb28