Malicious PDF — malware analysis report

Static analysis result for SHA-256 0113f834e67267a4…

MALICIOUS

PDF

431.4 KB Created: 2022-03-28 11:05:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: caf2444dcbd9c536e9c1eb06d003599d SHA-1: e74c75c147147a9b1b570d27c57895ed881780af SHA-256: 0113f834e67267a4f1a4040e3b7b5d5b1cc244837bf9323be06626e62d778723
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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://tevav.co.za/XSRYdR1H?utm_term=para+gostar+de+ler+cronicas+1+download PDF link annotation
    • http://triatlonbizuterie.cz/sites/default/files/file/vikaresun.pdfIn PDF document text
    • http://zatexpress.com/upload/userfiles/files/44990179879.pdfIn PDF document text
    • http://matchedtubes.de/userfiles/file/92259728256.pdfIn PDF document text
    • http://bagsh.itpd.mn/kcfinder/upload/files/12681153811.pdfIn PDF document text
    • http://filippodelvita.com/demo/userfiles/file/zilogabutawokakig.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/figafiwuzagujuloferak.pdfIn PDF document text
    • http://c-six.it/userfiles/files/vowebubilanelew.pdfIn PDF document text
    • https://abyss.sk/userfiles/file/peburowalevu.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/fowevupekus.pdfIn PDF document text
    • http://martonaroniskola.net/userfiles/file/99265094388.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/87540019468.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623cd87eb0c5a---94795770055.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/86125693857.pdfIn PDF document text
    • http://artiguardia.pl/userfiles/file/13874487501.pdfIn PDF document text
    • http://galluccifaibano.it/userfiles/file/46647086427.pdfIn PDF document text
    • http://ayurvedicclinic.org/userfiles/file/likepopufekunebeweb.pdfIn PDF document text
    • http://daiichitelecom.com/uploads/news_file/vavinedonakuk.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/8349d89141b6e2711b641f5b6a248383/xevupinodusiluxifuwa.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/01e2dd7a0fd2db15d860932814bb1608/42460492576.pdfIn PDF document text
    • https://i-intelli.com/ckfinder/userfiles/files/35587698685.pdfIn PDF document text
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/99551734813.pdfIn PDF document text
    • http://ecofincas.net/ckfinder/userfiles/files/30668177639.pdfIn PDF document text
    • http://online-editor.menu-card-maker.com/uploads/files/loraramenokez.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 extracted file (font_00_sfnt_off00064ca3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00064ca3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00064ca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA3 19124 bytes
SHA-256: a9dcc405bc6b95f25f2894a2a0d773d89d0bede8a84e5a28645fb0f5fc13e6ae
font_01_sfnt_off00067d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D5A 10684 bytes
SHA-256: d559764a6e157f9321ee80f8abe56afdcf929a9fbd8bf9c6143a8a1132259bdd
font_02_sfnt_off000695e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695E2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9