Malicious PDF — malware analysis report

Static analysis result for SHA-256 445890411fe130d3…

MALICIOUS

PDF

492.7 KB Created: 2022-01-25 15:04:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 5616e87127b045dbcb580c31a3bb6b1f SHA-1: 0cbc506798bd69da38466eb506c6d635968e08b1 SHA-256: 445890411fe130d3406e2fd74514164ec4701eed4c5b02471447b698f192dd7d
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5089

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yubit.co.za/XSRYdR1H?utm_term=bible+verses+in+tamil PDF link annotation
    • http://solar-makernavi.com/ckfinder/userfiles/files/jubuvosakidaxi.pdfIn PDF document text
    • http://hak-al.com/resimler/files/99304344551.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/81111058796.pdfIn PDF document text
    • http://www.otevrenysklep.cz/ckfinder/userfiles/files/84516308919.pdfIn PDF document text
    • http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/18775889388.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/58145612205.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/bi8dm7t74q1dqvoqcpp576q74o/xesaxegej.pdfIn PDF document text
    • https://sunriseinnjasper.com/nbloom/fckuploads/file/19086134020.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/pumisunolitixelotigoseg.pdfIn PDF document text
    • http://idroter.org/userfiles/files/xaveviseluvi.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/795b247064a9613ed135ffc21c5ca860/96094945141.pdfIn PDF document text
    • http://poultech.net/d/files/durudiv.pdfIn PDF document text
    • https://mmrh.myagenda.cz/pictures/editor/files/larilojed.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/161af10c6da6fa---gutivenomerotinel.pdfIn PDF document text
    • https://darshanam.com/ckfinder/userfiles/files/kobugatagapiwitotoge.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e851f988701---9636842848.pdfIn PDF document text
    • https://kaemsp.org/upload/editor/file/8907233826.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/pajagopigelubaregokof.pdfIn PDF document text
    • http://anilogue.com/upload/file/wapugogegilunawa.pdfIn PDF document text
    • https://adproissy.emailingmanager.com/uploads/editor/file/37876234166.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/dewegoradorolu.pdfIn PDF document text
    • https://daotaolaixesontay.com/uploads/file/bepisefasanit.pdfIn PDF document text
    • https://negaratoto.com/contents/files/37219899375.pdfIn PDF document text
    • http://lycee-elm.com/userfiles/file/84689443849.pdfIn PDF document text
    • http://americansemitruckparts.com/d/files/78678307559.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/34447422152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00074d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D36 15592 bytes
SHA-256: 5c2b98bb9134602f4ff176291ff54f2acbe561bbe9ad4da205025637a580b58f
font_01_sfnt_off00077527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77527 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00078bcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BCB 10408 bytes
SHA-256: 2dc9128eae18abf4e30c6ad434c26643ee83743b0ed3ec905a13b4369c2eccaa