Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfce6646cf7f004…

MALICIOUS

PDF

372.7 KB Created: 2022-01-19 16:51:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 29747563d29aeab8c825f9ffff9967e0 SHA-1: ed0ed76e55f64797ce6d632b417316231470742b SHA-256: 6dfce6646cf7f0041d9c2d66249c8399cfe079474a3cd4c3d79e30ee6c40aaed
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

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://rcchoir.nl/upload/files/zonuvexumit.pdf In PDF document text
    • https://atamergranit.com/userfiles/file/remoremutibozezir.pdfIn PDF document text
    • https://mannlicher.hu/admin/kcfinder/upload/files/91478061699.pdfIn PDF document text
    • https://candbco.com/ckfinder/userfiles/files/tuvoxetamu.pdfIn PDF document text
    • https://unecol.com/uploads/kcfinder/upload/files/68916693700.pdfIn PDF document text
    • https://www.tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/jarosuvufadebegalati.pdfIn PDF document text
    • https://cpaf.gdmnw.com/kcfinder/upload/files/dosufadipojuxewasabuj.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d2595837516---2736114937.pdfIn PDF document text
    • http://phuongdonggolf.vn/app/webroot/uploads/files/99002137458.pdfIn PDF document text
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16174debb49e1e---fenuvigetosolodaje.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/82729202146.pdfIn PDF document text
    • https://tumujerrusa.com/userfiles/61426182180.pdfIn PDF document text
    • https://bibliotheque.ville.deux-montagnes.qc.ca/ckfinder/userfiles/files/tatidoxuba.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a26473450b2---66681331623.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d0c9c1100f1---sepofezukinonopagemu.pdfIn PDF document text
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16142a71656599---37468071561.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16171763d27878---89139144388.pdfIn PDF document text
    • https://rozetki-merten.su/kcfinder/upload/files/vafakesulubikagapava.pdfIn PDF document text
    • http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/54317361158.pdfIn PDF document text
    • https://lenaoyunlar.com/calisma2/files/uploads/bafiwemitemifijozidi.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/161b2ca3e50aca---vekixodaj.pdfIn PDF document text
    • http://mascotdd.com/file_media/file_image/file/64440867609.pdfIn PDF document text
    • https://zufiks.pl/uploads/userfiles/files/63343901894.pdfIn PDF document text
    • http://carlaschroyen.com/content_docs/84229173399.pdfIn PDF document text
    • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/tipinuxi.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/dotinijopurudapub.pdfIn PDF document text
    • https://www.q-jin.ne.jp/ckfinder/userfiles/files/13802975731.pdfIn PDF document text
    • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161e6c48dd0fa7---9850748404.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=real+audiencia+nueva+espa%C3%B1a+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_off0005646c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005646c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5646C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00057b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B10 10712 bytes
SHA-256: 3c670c7aa7c4f8a7af17627b65ae06f1c7589f92c7e6dc6849aacdd169b6e5c0
font_02_sfnt_off00059375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59375 18228 bytes
SHA-256: 5e2025c5211a8a711189d45836640d2f192c98b950d45982ce541e817d0d6dd3