Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e1705d6d1c6d80…

MALICIOUS

PDF

432.2 KB Created: 2022-03-13 18:04:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: c8099d4b67146df4e94dcaa98188a51b SHA-1: 3c4c0f8e4a0dace3c072542d4278868e18a85230 SHA-256: b6e1705d6d1c6d80ea2a2c824dd10024999392aab1a27ae77a5637847db5877c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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 http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/162106364a75da---wosoxabubix.pdf In PDF document text
    • https://www.houseofwax.cz/kcfinder/upload/files/81670620427.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205182cbe4b8---89475394757.pdfIn PDF document text
    • http://xingyeknitting.com/userfiles/files/7038685226.pdfIn PDF document text
    • https://hanxinlvyou.com/FileData/ckfinder/files/20220311_C1C52B0EB105FC01.pdfIn PDF document text
    • http://nextgems.com/ckeditor/kcfinder/upload/files/bumebu.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/18ba9eed0bb49cbabc48ff11e5f51579/16538308202.pdfIn PDF document text
    • https://snapstudios.ca/userfiles/file/xejikisirufanulaso.pdfIn PDF document text
    • http://klwas.org/userfiles/images/file/27566470987.pdfIn PDF document text
    • https://virpr.com/userfiles/file/lesuko.pdfIn PDF document text
    • http://positiveforce.in/uploads/files/25278342716.pdfIn PDF document text
    • http://folhacer.com/cliente/conteudos/files/sokodonepuvewa.pdfIn PDF document text
    • http://mms.vru.ac.th/kcfinder/upload_new/files/33124121270.pdfIn PDF document text
    • http://ex2010.com/uploadfile/file/2022020113055373499.pdfIn PDF document text
    • http://jwpowerwashing.com/userfiles/file/rugorepukomakanegu.pdfIn PDF document text
    • http://giasuthanhdat.vn/Images_upload/files/mofigerazozevipemulejus.pdfIn PDF document text
    • http://parentini.it/userfiles/files/buzogap.pdfIn PDF document text
    • http://yameitecl.com/ckfinder/userfiles/files/20220216_045049.pdfIn PDF document text
    • http://ping-property.com/user_img/files/foxuwanabigelusuzebikow.pdfIn PDF document text
    • http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/woralajobixuriweruwebe.pdfIn PDF document text
    • http://designklasse.de/ckfinder/userfiles/files/lorobo.pdfIn PDF document text
    • http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/93965073747.pdfIn PDF document text
    • https://stotex.rs/files/99438997885.pdfIn PDF document text
    • http://etoprosto.ru/ckfinder/userfiles/files/pamaretixijomejewetaxijus.pdfIn PDF document text
    • https://wilgekrans.com/admin/user_files/files/96806928564.pdfIn PDF document text
    • https://kristaldicarlo.com/userfiles/file/wudenipowizadoxuvub.pdfIn PDF document text
    • http://theclelandgroup.com/img/upload/file/nipojose.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/vufozidajajakanatexebun.pdfIn PDF document text
    • https://nnkcreations.com/userfiles/file/26326775645.pdfIn PDF document text
    • http://web5gstore.com/Files/files/57068151623.pdfIn PDF document text
    • https://cuacuonanbinh.com/userfiles/file/3737164397.pdfIn PDF document text
    • http://dioblina.eu/userfiles/file/74813668522.pdfIn PDF document text
    • https://elnativocoffee.com/silver/upload/files/wugukaxorifopenak.pdfIn PDF document text
    • http://eastindiaspray.com/suvra/eastindia_spray/files/26544160002.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/2636eb00f4db1d74714992f5d38e10a6/98289168331.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=alltrails+app+androidPDF 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_off000652ef.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000652ef.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000652ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652EF 10232 bytes
SHA-256: 5cdb3db74b8996ce879902cf365cf4b198f6589f591e7cd8be0617155b2f13d8
font_01_sfnt_off000669f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669F8 18224 bytes
SHA-256: b1c101b64d43912cd5d9d1a8b11ad7d2b2ec1a0025f8abb56d476e48bb48fa45
font_02_sfnt_off000698d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x698D5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9