Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ca552b2add1a0c…

MALICIOUS

PDF

279.3 KB Created: 2022-03-04 09:34:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 77d86089154e73c8b33b1ad889b3aa7f SHA-1: 10910ae3ccf4e3001f2030ff0ccc5acd646ad1e0 SHA-256: c0ca552b2add1a0c8e992c370ca244620f72aab509deb1a09a0712d532c5d167
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8332

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://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/peloposefirewadenakogonaj.pdf In PDF document text
    • http://3dprofi.net/images/uploads/file/96221096880.pdfIn PDF document text
    • http://goodwill.pl/userfiles/file/linokixixolobuwopodufuzox.pdfIn PDF document text
    • https://mahae.hu/files/files/rejeteliket.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa7a2348acf---nidijegakupa.pdfIn PDF document text
    • http://7m-shop.com/userfiles/file/kesiwam.pdfIn PDF document text
    • https://justforjetscatering.com/userfiles/image/files/bezobojibupulagureto.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/51807961056.pdfIn PDF document text
    • http://minipit.com/data/files/85037457006.pdfIn PDF document text
    • http://lesybb.sk/userfiles/file/pibulonepek.pdfIn PDF document text
    • https://gulf-rope.com/images/bulk_images/files/65581656648.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/162181b8963d8f---xetopiwozes.pdfIn PDF document text
    • http://altus.pl/userfiles/file/gamamozewalasev.pdfIn PDF document text
    • http://massimobertoarchitetto.com/userfiles/files/momajelonozaxe.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/55355621645.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/4e542d705da86c570195f94d049dd8ae/pimibazokogozaviwusevawok.pdfIn PDF document text
    • http://quesnelfoundation.ca/userfiles/file/42218735951.pdfIn PDF document text
    • https://infracsap.hu/files/file/22417247846.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/2601667465.pdfIn PDF document text
    • https://bikeid.net/ckfinder/userfiles/files/26963666758.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620754a7adf79---miwojinujukudosuvefizime.pdfIn PDF document text
    • https://debcopharma.com/userfiles/file/91155077323.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=most+important+full+forms+for+competitive+examsPDF link annotation
    • 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 extracted file (font_00_sfnt_off0003f250.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f250.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F250 16760 bytes
SHA-256: 38cd89fb30a5d7a8e16e9dac671b3c5fc1bca7074531d654971b48ecbdd69317
font_01_sfnt_off00041dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41DC5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000434e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x434E5 10900 bytes
SHA-256: 9f35c717a56ffa418f5b7b3a808383a23119b0885d04d96ffbb6fa14e475e86c