Malicious PDF — malware analysis report

Static analysis result for SHA-256 258b36771c8f3502…

MALICIOUS

PDF

395.8 KB Created: 2022-04-23 18:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 0d6db45921c9e93a9d5f556765debf2a SHA-1: 13965e417d911f0d98b6dc34f2078e2502fa39d6 SHA-256: 258b36771c8f35020089e473be339aa08482a5ceae547ebbb63802ff70a9ae84
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8248

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=reported+speech+backshift+examples PDF link annotation
    • https://xifuvago.weebly.com/uploads/1/3/0/8/130813557/dubilovidikerelawop.pdfIn PDF document text
    • https://residencialconilcosta.es/kcfinder/upload/images/files/45028549989.pdfIn PDF document text
    • https://kaowei.tw/image/files/20220326_074824.pdfIn PDF document text
    • http://infoguard.ru/content/file/kepirapuwifajimegisoxalik.pdfIn PDF document text
    • https://rawonosegapit.weebly.com/uploads/1/3/5/3/135314608/kaxodunu-jeriguv.pdfIn PDF document text
    • http://babyindex.nl/images/uploads/43684391817.pdfIn PDF document text
    • https://zezonusadife.weebly.com/uploads/1/3/1/4/131410479/xovukivamotejivez.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16229c1c97a602---govepevosewutu.pdfIn PDF document text
    • https://rougezenekar.hu/files/file/7228490902.pdfIn PDF document text
    • http://jinruily.com/UploadFile/file/20220402044657356.pdfIn PDF document text
    • http://thessalonikiflights.com/files/files/vapoluxazovipudogi.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16216ba921f500---18861691393.pdfIn PDF document text
    • https://anupbolivia.com/images/files/mevamujofenixu.pdfIn PDF document text
    • https://xezotiwi.weebly.com/uploads/1/4/1/3/141342075/panefadame.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/jutanepeki.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/favatotir.pdfIn PDF document text
    • http://cmi.nfe.go.th/ckfinder/userfiles/files/15095524595.pdfIn PDF document text
    • https://transdeliveris.lt/userfiles/file/67150073082.pdfIn PDF document text
    • https://topukutenikoxi.weebly.com/uploads/1/3/4/6/134668920/davuvixul.pdfIn PDF document text
    • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/v47ujqlojp6993i106s2iq2337/76739826403.pdfIn PDF document text
    • http://dhf-china.com/d/files/81868465714.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/wazabeg.pdfIn PDF document text
    • https://jinokafolamod.weebly.com/uploads/1/3/4/3/134310646/junelek-wumus-zadisideza.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_off0005b945.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b945.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B945 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0005d15c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D15C 11160 bytes
SHA-256: 68c59c584deb561a2d6ed495dd0649b8800f10d7899f5875ed127942e4900b32
font_02_sfnt_off0005eb39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB39 20632 bytes
SHA-256: cffc9da78ca3042538f3ddc3220fdab3b0551d0448983c5262121ec68db4cd95