Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8dd8bfbe5f0e44…

MALICIOUS

PDF

314.2 KB Created: 2022-02-03 00:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 77c6c3b0d6118812ebab2ec0d6cbed0e SHA-1: 0aed6837d16f3f9aee72b64a0616af9d44e4b287 SHA-256: aa8dd8bfbe5f0e442c55c8eae197fb4d1557b99f9e22ed58ad8c865874a8b608
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6345

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=android+auto+alternative+ios PDF link annotation
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/49689595040.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615bb5e50cb5c---xoremi.pdfIn PDF document text
    • https://nepaltravelsandtrekking.com/userfiles/file/78250061819.pdfIn PDF document text
    • https://fotoprint.lv/downloads/file/95112816063.pdfIn PDF document text
    • http://www.polni.si/Images/files/poterimugex.pdfIn PDF document text
    • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/11321712617.pdfIn PDF document text
    • http://serviskytar.cz/kcfinder/upload/files/6621789887.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/74712740354.pdfIn PDF document text
    • http://giovanninociti.com/userfiles/files/25237462544.pdfIn PDF document text
    • http://cukiernia.eu/upload/files/dagobuga.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bb10a0d2d1d---dibosakivasozewamalopipe.pdfIn PDF document text
    • https://nada70.org/userfiles/file/67495396071.pdfIn PDF document text
    • http://geoodwierty.pl/files/file/ziseduzude.pdfIn PDF document text
    • http://recko.ru/ckfinder/userfiles/files/rowunumovox.pdfIn PDF document text
    • http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tojar.pdfIn PDF document text
    • http://www.sircom.org.br/tools/includes/kcfinder/upload/files/vulakemakofeka.pdfIn PDF document text
    • http://nhadatv.com/webroot/img/files/xelifixazosumibaregasama.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148729c003df---81716137675.pdfIn PDF document text
    • http://sangtaoad.com/uploads/userfiles/file/badilimoburumu.pdfIn PDF document text
    • http://harlit.com/ckfinder/userfiles/files/20210911_162538.pdfIn PDF document text
    • https://masukpt1.com/contents//files/71794925754.pdfIn PDF document text
    • https://www.thaiahpa.com/flash/files/44978184189.pdfIn PDF document text
    • http://lgassociates.in/uploads/muvupezaritukukirafaxo.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/r0rronerana62eg7iajda0n590/wodesefinapigoxekos.pdfIn PDF document text
    • https://sharenkon.com/files/divutudefuvo.pdfIn PDF document text
    • http://daisytalavera.com/userfiles/files/76958822880.pdfIn PDF document text
    • https://lotte-ppta.com/beta/assets/file/44802087325.pdfIn PDF document text
    • http://benevolo.it/userfiles/files/58728944914.pdfIn PDF document text
    • http://fuhua.tumujike.com/assets/upload/files/202109230205579946.pdfIn PDF document text
    • https://onlinendttraining.com/files/fasodex.pdfIn PDF document text
    • http://fastcredit.ge/userfiles/file/55497603299.pdfIn PDF document text
    • http://podarox.ru/public/files/38165369722.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/161d85373897bb---88566964766.pdfIn PDF document text
    • http://elazentrale.de/images/uploaded/file/jawutibo.pdfIn PDF document text
    • https://hsse.cl/files/33827020435.pdfIn PDF document text
    • http://hangzhou.chinatupai.com/web/js/ckfinder/userfiles/files/rekavavivedawovosexujo.pdfIn PDF document text
    • http://kjphotocon.org/data/userfiles/files/duriwigukogixajuko.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612777dc60486---3060569096.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_off00047f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F5F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004967f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4967F 10388 bytes
SHA-256: 2055972149e522635de17155183bc4e31443279dbe85323121b159f0e8011226
font_02_sfnt_off0004ae24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE24 16540 bytes
SHA-256: 3177af3c84551bddd47efcbf761d1bae4bf7fbed0f08578d4fd04bd5fa696bfd

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