Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1b539c5941aa59…

MALICIOUS

PDF

273.5 KB Created: 2022-03-01 12:56:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: ebd4fcb031458f165246aae7bde83083 SHA-1: a299d063e55aabb9117b465b73a6ba2773e4d24c SHA-256: 5a1b539c5941aa59d2767fa32cad1c09114b7f4abc1acb0793c4e315c53495ce
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8947

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.
  • 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://lovig.co.za/XSRYdR1H?utm_term=lateral+incisal+guide+angle PDF link annotation
    • http://futureinfashion.com/ckfinder/userfiles/files/88020043054.pdfIn PDF document text
    • http://icbiz.ru/userfiles/file/22393134911.pdfIn PDF document text
    • https://immobiliareincentro.it/allegati/file/danukavatigerowoxewe.pdfIn PDF document text
    • https://tradingcall.in/ckfinder/userfiles/files/gikidajikoziruxe.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1621a2faf56887---vutimawimubapowabuz.pdfIn PDF document text
    • http://njuhome.pl/ckfinder/userfiles/files/96667565231.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/23621003359.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/zofirojiwupuguluze.pdfIn PDF document text
    • http://taketty.xyz/js/ckfinder/userfiles/files/6401262750.pdfIn PDF document text
    • http://m-camper.ru/ckfinder/userfiles/files/dafoxadav.pdfIn PDF document text
    • http://xn--12cbg9dihj7egda2g6a7dceb1d2cp4nvgf4f.com/datas/files/rexavatalixejidekufer.pdfIn PDF document text
    • https://mimpishio1.com/contents/files/68901630174.pdfIn PDF document text
    • http://haiphongcontest.com/images/files/ruvitexeputuxefedo.pdfIn PDF document text
    • http://asktasi.com/ckeditor/kcfinder/upload/files/zejowexe.pdfIn PDF document text
    • http://www.luchpain.ru/kcfinder/upload/files/7763926841.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161ff2ae8559ac---50109334958.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_off0003d94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D94D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003f068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F068 17620 bytes
SHA-256: e0382f7b127e86e60bde5a8331d01abef6873b62e2d76b49ff761eb5bf3d40cf
font_02_sfnt_off00041e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41E79 10480 bytes
SHA-256: 0d0b475a545d8771bf05b53821c07739b21c15ae7ea5f8563b4714936ae6418b