Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6d25b99f9e73e9…

MALICIOUS

PDF

543.8 KB Created: 2022-03-03 10:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: adfe1a5e7883c564d56fb74c824a8270 SHA-1: 0f01c161004d47ef0e399efb93884259d24787b8 SHA-256: ca6d25b99f9e73e939446d691fbe8aad3f4e6554c1111155e34e6dd32965d236
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5031

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://norin.co.za/XSRYdR1H?utm_term=hindustan+times+editorial+pdf PDF link annotation
    • https://www.takaotakano.com/kcfinder/upload/files/77077326048.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1621f0f52b87ee---47523522128.pdfIn PDF document text
    • http://electronicascanaresas.com/kcfinder/upload/files/55994582814.pdfIn PDF document text
    • http://chinnanaidoo.org.za/kcfinder/upload/files/gokewubinuropego.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200a77f8a4a1---vodepiwuxe.pdfIn PDF document text
    • https://promaxsuspension.com/csmimage/file/77532144623.pdfIn PDF document text
    • http://crisismobile.com/ckfinder/userfiles/files/suzobove.pdfIn PDF document text
    • http://denetimmusavirlik.com/userfiles/file/19064434440.pdfIn PDF document text
    • http://gdlianyu.com/uploadfiles/file/zopuguvelazetilil.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1620d22020f190---fixej.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1621bf5c01881c---sogigibutabisakamak.pdfIn PDF document text
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/4d0ak33e39868cuagaft5guko7/rejidadapumovelu.pdfIn PDF document text
    • http://plan1.ir/assets/ckeditor/kcfinder/upload/files/98844309009.pdfIn PDF document text
    • http://haohanlegend.com/Uploadfiles/files/92472205284.pdfIn PDF document text
    • http://gmkms.net/upfile_editor/2022/files/suxotigasebati.pdfIn PDF document text
    • http://hakanhurdacilik.com/userfiles/file/vutazolabodukak.pdfIn PDF document text
    • http://www.debreceni-fogaszat.hu/js/ckeditor/kcfinder/upload/files/21949878.pdfIn PDF document text
    • https://licensing-centre.poweredbypaf.com/files/64810455491.pdfIn PDF document text
    • http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/74420164085.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/ce6c6fef4481cc936c8b9b54822a2fff/19744938696.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/90790200768.pdfIn PDF document text
    • http://atomleasing.ru/media/File/16806407939.pdfIn PDF document text
    • https://ashasuchikala.com/ckfinder/userfiles/files/rawujumorum.pdfIn PDF document text
    • https://dcmheavyequipment.com/admin/images/file/60524910100.pdfIn PDF document text
    • http://www.tomasjelinek.com/img/pub/file/motevesuva.pdfIn PDF document text
    • http://customartdirect.com/kcfinder/upload/files/91675932864.pdfIn PDF document text
    • http://terrygallery.com/fckeditor/_upload/file/diwuxaxi.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 extracted file (font_00_sfnt_off0008108d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0008108d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008108d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8108D 10748 bytes
SHA-256: 1e3b1b1c1f3e50566d868d2a660b833031aaa609f853e182e3d11f13cf72de17
font_01_sfnt_off0008292a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8292A 18396 bytes
SHA-256: 27a02bb7405edaec812a939f2c3fcb1ed79fba5e23e4c13c8a89be321bea250d
font_02_sfnt_off0008593b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8593B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9