Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df8c11e5fea1d7a…

MALICIOUS

PDF

269.1 KB Created: 2022-01-21 18:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 0da83e87c928ec0d5529d610860b6132 SHA-1: 2ab621095385725563037fbdf4150dd9fb895a63 SHA-256: 6df8c11e5fea1d7aa622d827bbe71039209fb80c446e233e4a8f1ded09a63cab
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7170

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://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/a8da3b6f8992f8fa7de121f5bf10193e/jabusolexexatanus.pdf In PDF document text
    • https://ccrm.dreamcoders.net/Attachments/File/69407670727.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/14925677281.pdfIn PDF document text
    • http://bacvietexpress.com/upload/userfiles/files/30399583059.pdfIn PDF document text
    • http://ibookingkr.com/FileData/ckfinder/files/20210923_790C7470A55E0E1D.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce10915f41---95075846089.pdfIn PDF document text
    • https://kulittelor.com/contents/files/30330873060.pdfIn PDF document text
    • http://p-jtech.com/userData/board/file/34195696506.pdfIn PDF document text
    • http://l-max.ru/userfiles/file/76860689622.pdfIn PDF document text
    • http://boletos.luzservicos.com/ckfinder/userfiles/files/84914619208.pdfIn PDF document text
    • http://tootingtaxi.com/survey/userfiles/files/gubegirinodumureso.pdfIn PDF document text
    • http://shesob.com/file/files/fagakogor.pdfIn PDF document text
    • http://skulpt.in/admin/uploads/file/subewuxitokewedide.pdfIn PDF document text
    • https://footballsod.com/images/ck-uploads/files/vadiluzalokurafas.pdfIn PDF document text
    • http://villkasz.hu/editor_up/28065736815.pdfIn PDF document text
    • http://euroear.eu/ckfinder/userfiles/files/xamadozasugugotofebagi.pdfIn PDF document text
    • http://seidels-mineralienwelt.de/images/uploaded/file/voxajixotiwazowixa.pdfIn PDF document text
    • http://sanjosechakan.com/lib/kcfinder/upload/files/noterokikusavopem.pdfIn PDF document text
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/remafuvasenojabug.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/6561615702.pdfIn PDF document text
    • http://clingac.com/d/files/xapaw.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e502ec2cf35---jamoxi.pdfIn PDF document text
    • https://feng-shuiworld.com/userfiles/file/kuxegoroworojilitibi.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16130b16be39dd---duvalurativojifiko.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/1dd0d95b402be08746dc2d9b4fd9c2ed/85285617547.pdfIn PDF document text
    • http://ltpbetel.ro/userfiles/file/putanunezukumebijelaputi.pdfIn PDF document text
    • http://conservativista.com/js/ckfinder/userfiles/files/lavewogaxarilavutabira.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1616b3d5f00df9---nafigipokufamipaf.pdfIn PDF document text
    • https://inprovitpuertorico.com/ckfinder/userfiles/files/mubokotusam.pdfIn PDF document text
    • http://smartmoverecords.com/india/images/file/boponiwoxogexabutuzufa.pdfIn PDF document text
    • https://factorysales.com/userfiles/files/runij.pdfIn PDF document text
    • https://mobilaide.com/upload/editor/file/35720086681.pdfIn PDF document text
    • http://irina-beha.com/ckfinder/userfiles/files/jadofajunebol.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161324c0f422d3---fujexiwesokirejutekefitax.pdfIn PDF document text
    • http://naturabliskociebie.pl/userfiles/file/19362403209.pdfIn PDF document text
    • http://idealhca.com/admin/images/file/tanixivo.pdfIn PDF document text
    • http://zeci.nl/im/image/bepukowojekibesup.pdfIn PDF document text
    • http://centrons.com/uploaded/file/344642562614935d3e8e8d.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/68773542694.pdfIn PDF document text
    • http://skkouty.cz/ckfinder/userfiles/files/13677982816.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/BcFPVxLj4jw/uplcv?utm_term=101+ccna+labs+pdfPDF 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_off0003c8fc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003c8fc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C8FC 17616 bytes
SHA-256: f2fbf065aab21b3fd7475556804b910606071e5d7e143efa9ad34f356c024db3
font_01_sfnt_off0003f704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F704 10288 bytes
SHA-256: 0518316a8cc1d0ccbd1753b1beb2adffabf8e9e80b70f11f11527dbc1e258758
font_02_sfnt_off00040e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40E13 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336