Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8a26f1c69e272…

MALICIOUS

PDF

274.9 KB Created: 2022-05-12 16:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: ce553dc5133d9eb3c095c684d6d56c7d SHA-1: 61de018d929a3524ad01c160a9f3607e8be227dd SHA-256: a4f8a26f1c69e2721ff6d9cb4bd57e131d3a0c4ad02aa92cfaf92bd97c9c66ad
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7617

Heuristics 5

  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=principles+of+supply+chain+management+5th+edition+solutions+manual PDF link annotation
    • http://www.fred-robin.com/ckfinder/userfiles/files/wifadizorezatolad.pdfIn PDF document text
    • https://romuxejis.weebly.com/uploads/1/3/4/8/134887308/bitepe_pulujowi_kirinokagula_judetevasumube.pdfIn PDF document text
    • https://congchung7.com/upload/file/gajutebixezobal.pdfIn PDF document text
    • https://tujezagen.weebly.com/uploads/1/3/4/7/134775207/gasemepufovas.pdfIn PDF document text
    • https://lurumafija.weebly.com/uploads/1/3/0/8/130873973/8974223.pdfIn PDF document text
    • https://sovipepunufo.weebly.com/uploads/1/3/5/4/135400675/c98e53a9fa0c.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/zerunevofazo.pdfIn PDF document text
    • https://dalupapixoriwu.weebly.com/uploads/1/3/1/4/131438121/8995329.pdfIn PDF document text
    • https://dapamokosow.weebly.com/uploads/1/3/4/3/134337633/tokajubexitexam_nawel.pdfIn PDF document text
    • https://ildiko-szepsegszalon.hu/userfiles/file/99221536762.pdfIn PDF document text
    • https://bowasizavaxilek.weebly.com/uploads/1/3/4/0/134042597/pafariwawozim-lereburo.pdfIn PDF document text
    • https://nulivuxod.weebly.com/uploads/1/3/0/7/130776854/gizilaxedijub-purozelib-jitufoxifojap-xutawejano.pdfIn PDF document text
    • https://valstybestarnyba.com/upckfinder/files/52287874818.pdfIn PDF document text
    • http://www.zdrava-bunka.eu/subdom/test/kcfinder/upload/files/jexoxewito.pdfIn PDF document text
    • https://mail.insetclean.com.br/kcfinder/upload/files/ninuxebajusonapafamexeni.pdfIn PDF document text
    • https://devomideribura.weebly.com/uploads/1/3/4/4/134401990/wibizuj.pdfIn PDF document text
    • https://revotifolalowo.weebly.com/uploads/1/3/4/7/134716495/6962575.pdfIn PDF document text
    • http://gardatrans.com/content/Files/sotuduresinene.pdfIn PDF document text
    • http://rezidencianestor.sk/app/webroot/files/ckeditor/files/zizabomesarulomejus.pdfIn PDF document text
    • https://vafarisitoguv.weebly.com/uploads/1/3/0/8/130874489/d5de4e.pdfIn PDF document text
    • http://stylekd.ru/files/difisironanisedowexo.pdfIn PDF document text
    • https://wexiwofuj.weebly.com/uploads/1/4/1/4/141458104/zeperolem.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20220408234706.pdfIn PDF document text
    • http://coeb.eu/userfiles/files/28119312852.pdfIn PDF document text
    • https://toscanafantastica.com/userfiles/file/latetomisera.pdfIn PDF document text
    • https://rosujukasawi.weebly.com/uploads/1/3/5/3/135301647/xifurini.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_off0003da7a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003da7a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003da7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DA7A 11416 bytes
SHA-256: 33c93a62e488dcd99b29911d13e47a1c39c29b0b467dc2e3d940593e91c56013
font_01_sfnt_off0003f512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F512 17624 bytes
SHA-256: bc2d9d060161ae59aa0ee96ffdc0601ead47fb07712f684e1e2819ca0b3cb92a
font_02_sfnt_off00042359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42359 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1