Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca65847cf8a4e70e…

MALICIOUS

PDF

277.9 KB Created: 2022-02-14 20:17:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: ec36ab285c0b4ddd2705780ce3129f58 SHA-1: f75993f24432cd640cd1e2a57396acb641bd4c27 SHA-256: ca65847cf8a4e70ee0a9d78dfeccb7bdfdb80a0f685ca2a1054c5858b486baee
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7754

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://everestart.com/images/stories/file/59906080929.pdf In PDF document text
    • http://www.matrixaviationfueling.com/assets/ckeditor/kcfinder/upload/files/43873173806.pdfIn PDF document text
    • https://a5productions.com/home/a5pro/public_html/ckfinder/userfiles/files/dezurerubapuvajasak.pdfIn PDF document text
    • http://recviem.ru/img/upload/76465514485.pdfIn PDF document text
    • http://gillsandgeckos.com/userfiles/file/dikumukebomosodu.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/xafifaniwivit.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/b3bf3dd0a2392812177c1520061f7489/73906411781.pdfIn PDF document text
    • http://embauchecadre.com/kcfinder/upload/files/gugaduxikuxugafe.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/6940bac6180a1760848eb9c58139dd8f/71181341262.pdfIn PDF document text
    • https://museuminiaturesbesalu.com/files/jukanosugajokepoxomodibuw.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-7-29/20210729235116599142.pdfIn PDF document text
    • http://ctyhoalinh.com/media/ftp/file/89890537004.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/23598828390.pdfIn PDF document text
    • https://desarrollostecnologicos.condotiero.com/imagenes/imgeditor/file/14852462155.pdfIn PDF document text
    • https://studiovizia.com/webroot/img/content/files/59853235359.pdfIn PDF document text
    • http://2017.letnifestiwal.pl/ckfinder/userfiles/files/70248008779.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/90684037748.pdfIn PDF document text
    • http://vyveva.eu/UserFiles/File/vofikemuxasarivodupa.pdfIn PDF document text
    • http://tuning-zone.eu/userfiles/file/xidurajowufu.pdfIn PDF document text
    • https://www.tahitotfalu.hu/ckfinder/userfiles/files/35890443167.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161ff05de1baf9---7167315953.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2022-1-1/20220101054651312619.pdfIn PDF document text
    • http://apartament-krokus.pl/userfiles/file/fotiribipoteruk.pdfIn PDF document text
    • http://www.ih-consultant.com/ckfinder/userfiles/files/nefuwiragozizegunibil.pdfIn PDF document text
    • https://lazerom.pro/media/file/getasa.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=crystal+report+13.+0.+18+runtimePDF 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_off0003eabe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003eabe.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003eabe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EABE 16892 bytes
SHA-256: e3ef4c3bae7e91d2a729c55cb875639d507d3c17193aa08477aa90d67e52051f
font_01_sfnt_off00041719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41719 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00042e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E39 11276 bytes
SHA-256: b7bd0d5b89515e304aa75d12a0e830fa8ba0ee2315b24559672b989b15663a70