Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3d40be352e176…

MALICIOUS

PDF

354.4 KB Created: 2022-02-01 04:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a3babde8dfb6b348b248c723336a8433 SHA-1: 601a39abcd10c1e841cab81d2aac7e5f8be94c37 SHA-256: c5d3d40be352e176e7bb66b9b284dbc32ff9a523c3fc866c6878e759d29816ed
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6186

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=bouldering+techniques+pdf PDF link annotation
    • https://gmt-tw.com/app/webroot/userfiles/files/86850991645.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161e745b6725fe---82880278779.pdfIn PDF document text
    • https://nsaimmigration.com/userfiles/file/50006029810.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/34610193572.pdfIn PDF document text
    • http://taikenplan.jp/ckfinder/userfiles/files/nodewelilotekejufeziwi.pdfIn PDF document text
    • https://huanghecables.com/d/files/kisuxivulita.pdfIn PDF document text
    • http://ekosertifikat.uznature.uz/userfiles/file/saxibefidizuneg.pdfIn PDF document text
    • http://boryspil.osp-ua.info/userfiles/file/79989296238.pdfIn PDF document text
    • http://sinosteelcode.com/filespath/files/20211110105849.pdfIn PDF document text
    • http://saint-party.com/media/file/wemiputekolekumobugesexa.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/e3b5b4ab2437ca161a9e631e0e564ef9/xuzumebamevosuj.pdfIn PDF document text
    • https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/53163472715.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1616486585b3ae---37875019936.pdfIn PDF document text
    • https://baglab.pl/galeria/file/fuzarejikilawobiwamibut.pdfIn PDF document text
    • https://scalper.ir/data/files/file/44034850233.pdfIn PDF document text
    • https://studio-mano.com/userfiles/file/gumebapewobal.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16163ac643b096---marekevobub.pdfIn PDF document text
    • http://imailbox.nl/images/uploadedimages/file/madaperitekaxasexet.pdfIn PDF document text
    • http://tonyprins.nl/images/uploads/file/lubadidovitivumukekazuj.pdfIn PDF document text
    • https://krenzle.sk/editors/ckeditor/plugins/kcfinder/upload/files/betofifagasuwevulalibo.pdfIn PDF document text
    • https://aydin-elektrik.com/resimler/files/74997180749.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1616a3d440ca22---71620070270.pdfIn PDF document text
    • http://dymenahealthcare.com/upload/fckeditor/file/27087380538.pdfIn PDF document text
    • http://doremimarlikinsaat.com/userfiles/file/zafexuzafi.pdfIn PDF document text
    • https://afayl.com/userfiles/file/gupexo.pdfIn PDF document text
    • http://foxhill101.com/userimages/fozibarajelobukezijofef.pdfIn PDF document text
    • http://wo-kop.pl/userfiles/file/kawanabaruninawivalo.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/10023425202.pdfIn PDF document text
    • http://www.deep2001.com/images/library/File/fivimizuzaka.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/solapivutumetitakirenes.pdfIn PDF document text
    • http://shrlie.com/upload_fck/file/2021-10-11/20211011213256718163.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/27558145750.pdfIn PDF document text
    • https://pujabhandar.com/kcfinder/upload/files/nubikajaxifebemumareb.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/mozumilomovedidetaz.pdfIn PDF document text
    • http://swatimishra.in/uploaded_files/userfiles/files/68053960902.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50877 11036 bytes
SHA-256: e6de32a27668455ca141a583a809ad832f08349637d4e8d157b0fd4a82fac03f
font_01_sfnt_off0005218e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5218E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005382d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5382D 16972 bytes
SHA-256: 8c5d28043c2623fed13955a6fff832a3783fd898d197fe5d8ef7e0e5c6aa8d95
font_03_sfnt_off000563d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x563D5 16344 bytes
SHA-256: 5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58