Malicious PDF — malware analysis report

Static analysis result for SHA-256 425fbc9efb36c075…

MALICIOUS

PDF

299.4 KB Created: 2022-02-03 19:15:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: a6dae7f8accbcfa9aea1df2c3f9528fe SHA-1: 2d38a3b99c2c66a3d5f060774c8eec87415aedac SHA-256: 425fbc9efb36c075a5f7d2e42c3af1a5d79eea3a87facdc01fa2372354a93266
190 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6424

Heuristics 9

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://wirut.co.za/XSRYdR1H?utm_term=late+payment+invoice+letter+template PDF link annotation
    • http://linpus.com/app/webroot/userfiles/files/juvavegeleresoxojawe.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/xogogibepifuduwovamodolo.pdfIn PDF document text
    • http://rbc-bezorgdiensten.nl/upload/40825515820.pdfIn PDF document text
    • http://alfavs.eu/userfiles/file/kawufefukoziwevexalonumum.pdfIn PDF document text
    • https://loyd.rs/images/file/53991289969.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/jigasor.pdfIn PDF document text
    • http://baovethanglongmb.com/upload/files/20253010498.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4c851091833bb796ca5df11cc3386f46/79770846889.pdfIn PDF document text
    • http://handlpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wogelisine.pdfIn PDF document text
    • http://personnelstrategies.net/userfiles/file/11519448399.pdfIn PDF document text
    • http://babywagen24.de/userfiles/file/zojifujolokuvekofevi.pdfIn PDF document text
    • http://dtyxbpzx.com/filespath/files/20211115021652.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/dijibeworigasadezepodulo.pdfIn PDF document text
    • http://marcobernini.it/userfiles/files/15989979349.pdfIn PDF document text
    • http://dush-kz.ru/uploads/fck/file/41456659285.pdfIn PDF document text
    • https://odontologosmalca.com/images/userfiles/file/6413406368.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/12048535735.pdfIn PDF document text
    • http://www.salda.lt/saldus/kcfinder/upload/files/61377854266.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5d9488cad2ec646c8b3c28c17696bb01/xovewakaripezexixu.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/ncau0uprtv2f01473a77dpk19r/mototejomimagonu.pdfIn PDF document text
    • http://hanauhrova.cz/files/romirisinuraledu.pdfIn PDF document text
    • http://bjerkelunden.org/content/files/userfiles/file///zagetuzugupa.pdfIn PDF document text
    • http://veterky.ru/ckfinder/userfiles/files/vosepavek.pdfIn PDF document text
    • https://aljazeerahdrilling.com/userfiles/files/10129025814.pdfIn PDF document text
    • http://uptownherndon.com/uploads/files/jurofog.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/vebowisele.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161afd5c48d6eb---36007025239.pdfIn PDF document text
    • http://mxagproducts.com/upload/browse/file/gimuxezunorirererubid.pdfIn PDF document text
    • https://produse-zilan.ro/files/bozalunoxorefeduge.pdfIn PDF document text
    • https://vntdc.com/upload/fck/file/fisituwimuremoguxupox.pdfIn PDF document text
    • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/vigetajobipumejive.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16197e6018c112---zejadijilozagas.pdfIn PDF document text
    • http://acpiindia.com/userfiles/file/nopifokelibaxoda.pdfIn PDF document text
    • http://bbfederico2.net/userfiles/file/7197410272.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/d83ca23978e92a445bec9bae0504095e/26752147011.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/74ade7a7826144132ad5dd869151a378/nupuxok.pdfIn PDF document text
    • http://wumag.pl/userfiles/file/63343337159.pdfIn PDF document text
    • http://manpukulivermore.com/uploads/files/xepabeba.pdfIn PDF document text
    • https://www.ibericaseguridad.com/admin/kcfinder/upload/files/62874686977.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_off00044163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44163 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004587e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4587E 17084 bytes
SHA-256: e2d074fe14b43b153f551fe8195f4a767f02754dfb908af9c84ade8ca3bb49fd
font_02_sfnt_off0004852e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4852E 10504 bytes
SHA-256: b8299c78df22c86e5906adb9311170fc8bab8dae1bb839437b874824ffcc5235