Malicious PDF — malware analysis report

Static analysis result for SHA-256 94143671f2a5e73d…

MALICIOUS

PDF

252.4 KB Created: 2022-01-06 18:21:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 664d744f3ff17014ff14b65713cad6b4 SHA-1: 298f3dc77d80f7ff785d3efb5b96481277022108 SHA-256: 94143671f2a5e73d1aca0643ec44d90d37720b682be3eb35c581ba56af4e714f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6444

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://janjoling.com/public/ckfinder/userfiles/files/20931333917.pdf In PDF document text
    • https://xn----7sbbzeackusl5afk8czi.com/admin/kcfinder/upload/files/vatebuxuguz.pdfIn PDF document text
    • http://www.sircom.org.br/tools/includes/kcfinder/upload/files/85691976643.pdfIn PDF document text
    • http://www.ruben.pl/ckfinder/userfiles/files/81792844737.pdfIn PDF document text
    • http://tsrmvolontari.it/userfiles/files/46431340934.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/ab9d534674e6e8a8a58855b068e8e91a/79378941424.pdfIn PDF document text
    • https://hyper.oneewe.com/_img/files/50980275643.pdfIn PDF document text
    • https://detmers-kontejner.hr/files/mujenipitikagigoji.pdfIn PDF document text
    • http://arc-en-cielproduce.com/ckfinder/userfiles/files/pilodosimox.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/63125705215.pdfIn PDF document text
    • https://citytrafik.nu/images/file/mowadotejotizajoxazo.pdfIn PDF document text
    • http://www.tivafa.hu/upload/file/73065659931.pdfIn PDF document text
    • http://mariancozma.com/_user/file/80947255124.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16172e0d7a78fb---31996180222.pdfIn PDF document text
    • http://lifebeachvilla.com/uploads/image/files/voxerefurevedutugofi.pdfIn PDF document text
    • http://rbmtechnik.pl/userfiles/file/82844283548.pdfIn PDF document text
    • http://vietnam-intraco.com/webroot/img/files/70993448995.pdfIn PDF document text
    • http://eskuvotoszkanaban.hu/editor_up/zarunuwapi.pdfIn PDF document text
    • https://ntct.dz/ckfinder/userfiles/files/61965990036.pdfIn PDF document text
    • http://kapfenberger-schuetzenverein.at/userfiles/file/zimitenezoseju.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/161be225ba5c44---monenigajuzirigidus.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HTGXzuRVGb4/uplcv?utm_term=backtrack+5++virtualboxPDF 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 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_off00033ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33AE2 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003517d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3517D 25060 bytes
SHA-256: 4f21be2273a86858547da0529ef8cb7197a55c001963917f318c04c8cee9d724
font_02_sfnt_off00039847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39847 10508 bytes
SHA-256: 9d5f3deaf8ce4bfe0d3f560c932a39a8ddafceabc1ac7a7bb19632e552cc6835
font_03_sfnt_off0003b072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B072 19164 bytes
SHA-256: 349ef951c7285133107508bf47984f66be2f77ac63f7a51a04f5999d89476408