Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b25c1cb573f7d0…

MALICIOUS

PDF

487.0 KB Created: 2022-02-08 09:13:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 7ae223793696e8a34d89c766e01741c0 SHA-1: 77459ff46e30d4d29652eb8ef2834716c82cd54b SHA-256: 72b25c1cb573f7d03368b9be4c51f5f71b17a709615fa3223ea995a4d89163c4
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4372

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mifuj.co.za/XSRYdR1H?utm_term=attitude+status+video++share+chat PDF link annotation
    • https://www.sudoku-cool.com/ckfinder/userfiles/files/bagumakufevopaxajomo.pdfIn PDF document text
    • http://german-ex.com/images/blog/file/50400601067.pdfIn PDF document text
    • https://alibaba-cave.com/userfiles/file/82082073125.pdfIn PDF document text
    • http://biggedefense.com/userfiles/file/geladikagamijafowoso.pdfIn PDF document text
    • https://altsovmun.ru/userfiles/file/55921217488.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/579ded3b5145fa617b4e35ee4b41815c/12710747097.pdfIn PDF document text
    • https://duvarkagidierzincan.com/userfiles/file/valivexezisepi.pdfIn PDF document text
    • http://dailymaydemtien.com/userfiles/files/pavapolizemow.pdfIn PDF document text
    • https://khotelmarket.com/FileData/ckfinder/files/20210908_A86069374B33206F.pdfIn PDF document text
    • https://www.jdconstinc.com/ckfinder/userfiles/files/pozumolaf.pdfIn PDF document text
    • http://opersan.com/file/25864864172.pdfIn PDF document text
    • https://ntiverification.com/userfiles/file/6779261364.pdfIn PDF document text
    • https://administrador.bannik.com/benkio/files/43066989005.pdfIn PDF document text
    • https://yuanfuconstruction.com/ckfinder/upload/files/10708048046.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/6023a80dd4295976da583886d1485958/tifisovojipazigetobumufe.pdfIn PDF document text
    • http://lam.kiev.ua/kcfinder/upload/files/wodokazozamijidivaku.pdfIn PDF document text
    • https://almuhja.net/ckfinder/userfiles/files/livegapabisup.pdfIn PDF document text
    • http://chanakyaaerospacedefence.com/userfiles/file/jotuxegejogabetapu.pdfIn PDF document text
    • https://alsharqcc.com/userfiles/files/11074215069.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cad462d19a---janowona.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619348e5d8f03---30767884401.pdfIn PDF document text
    • https://zohopin.com/calisma2/files/uploads/tusigagasu.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/0add730672632321982510b28dd55188/vagabaru.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/xavabizuvajaleso.pdfIn PDF document text
    • http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/91335612352.pdfIn PDF document text
    • https://kitapkapla.com/upload/ckfinder/files/lovajubixubukuvonupere.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/52c4c7195fb9a7f5f16c172eba901202/wosepemipanolojok.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/sifegizaralalunapugikoti.pdfIn PDF document text
    • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/92901733163.pdfIn PDF document text
    • https://pt2-turbo-j3t.com/contents/files/nitaxipolofuxewupar.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_off00073145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73145 10464 bytes
SHA-256: a95fa35037df3bd7301ceeda82b10896c007b9e223a6114ad5edd22096e46018
font_01_sfnt_off00074945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74945 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00076060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76060 16940 bytes
SHA-256: 5d3c25abb9cf5d73192bf4ad6e558b75dfcd35ecd8b791d9007baec8b493a2fc