Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe45d53e5172a30…

MALICIOUS

PDF

326.5 KB Created: 2022-02-20 05:46:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: fe837f231584ee757b96e60de8f34713 SHA-1: b4ae0aa420fab22083245df4d111fdb895268c75 SHA-256: cbe45d53e5172a308b818707674800f076d57f66b0bdc4fc49ee89f414cd5554
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8799

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://lazav.co.za/XSRYdR1H?utm_term=factorising+worksheet+with+answers PDF link annotation
    • http://kalikraft.com/images/file/tuzuzufifazelikotudo.pdfIn PDF document text
    • https://dnmpaint.com/sdcc/images/file/wefajudowut.pdfIn PDF document text
    • http://www.moudclpiu.gov.np/public/kcfinder/upload/files/78225478595.pdfIn PDF document text
    • http://7seapharmtech.com/Uploadfiles/files/1230246051.pdfIn PDF document text
    • http://dachastyle.com/userfiles/file/lidudogakivapovikolurexa.pdfIn PDF document text
    • http://ranfeng.com/userfiles/file/2021-11///202111181049536651.pdfIn PDF document text
    • https://thuanxuongmonmb.com/admin/webroot/upload/image/files/35113930148.pdfIn PDF document text
    • https://vsevolozhsk.mebel18.com/uploads/files/galejut.pdfIn PDF document text
    • http://holdemigny.fr/ckfinder/userfiles/files/sexafagenixudek.pdfIn PDF document text
    • https://oasis-travel.ro/files/70555667861.pdfIn PDF document text
    • http://www.razitka-conti-trodat.cz/kcfinder/upload/files/64638205495.pdfIn PDF document text
    • http://rrbrentacars.com/files/others/vefajaxupemedunu.pdfIn PDF document text
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd563895ea2---19852268352.pdfIn PDF document text
    • https://wickedcheesy.com/images/file/wujujosixunafo.pdfIn PDF document text
    • http://zamgph.com/uploads/file/160429563730.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_off0004a93a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a93a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A93A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004c05a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C05A 10620 bytes
SHA-256: c1109660608cf7f21d347401feca5bbbdf192838b5284a3ed073245e7b31b514
font_02_sfnt_off0004d8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8B1 19292 bytes
SHA-256: fc3392dee6d6606d9ca70db57d59c82c8775051eb035c36b957d9a33b6b5f3de