Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87d2b49b71def5d…

MALICIOUS

PDF

313.5 KB Created: 2022-02-03 17:47:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 87a7fc6760a013c695d6cd53fcd3585f SHA-1: c4c5dc90fbc07471ab825e05acdf0156a5bda8e1 SHA-256: f87d2b49b71def5d6f44576556a967cd602dc2da60d611f914d997928806da7c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8236

Heuristics 6

  • 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.
  • 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://cafij.co.za/XSRYdR1H?utm_term=reported+speech+french+grammar PDF link annotation
    • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/1612d938f85cb9---14459519225.pdfIn PDF document text
    • http://safires.cz/ckfinder/userfiles/files/jakigoroxipi.pdfIn PDF document text
    • http://seksdagen.nl/userfiles/file/xodulaxelekadepeger.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/mesovajidexekijexe.pdfIn PDF document text
    • http://t-eamplus.de/web/editor/files/47729853361.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210809123256.pdfIn PDF document text
    • http://cokhivietuc.webthoidai.com/img-vietuc/files/51133357493.pdfIn PDF document text
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/2954df6ddc5d2b3b53cce82c496bb70e/xodiwuwubexe.pdfIn PDF document text
    • http://www.bluewhaleline.com/image/upload/File/20241133106.pdfIn PDF document text
    • https://rrhh.fronteraliving.com/imagenes/contenidos/files/foxivirivuzokopexepesa.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309fe6c30c3---bikibe.pdfIn PDF document text
    • http://hosungtour.com/FileData/ckfinder/files/20210925_D423D69CAB7C8D62.pdfIn PDF document text
    • http://maquinandoysubastando.com/dleyes/admin/fotos/file/52724307865.pdfIn PDF document text
    • http://studiopol.com/userfiles/files/32107768150.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/e0nf8ciji6n563b2f6jc2gh0vj/32729649176.pdfIn PDF document text
    • http://jfac.kr/ckfinder/userfiles/files/zawavamewosimofukemipoma.pdfIn PDF document text
    • https://philly.drinkpoint.com/uploads/files/97606673468.pdfIn PDF document text
    • https://hotel-la-licorne.fr/userfiles/file/60842911656.pdfIn PDF document text
    • http://cannamelis.com/userfiles/file/turijuvosekutilonikuku.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1619b66c264846---77249616286.pdfIn PDF document text
    • https://snapstudios.ca/userfiles/file/watejerabifitenafif.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_off00047aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47AAD 10972 bytes
SHA-256: 3cb5db7315aca5d8103d1c2b19ac712a447be578cc34de7f6ad839f8873ed7d4
font_01_sfnt_off000493c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x493C2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004aadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AADD 17316 bytes
SHA-256: 13eaf4800ba895e7a4df7ad6484156cac234ff061ee3f11ef20d9fe074d58816

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