Malicious PDF — malware analysis report

Static analysis result for SHA-256 552ea6d090c67478…

MALICIOUS

PDF

333.7 KB Created: 2022-02-19 13:59:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 7a3afb6aace627ab3907b390af2da398 SHA-1: 1caebf8b2cf9a993c1fad272053b222018945491 SHA-256: 552ea6d090c6747854bf02687145a50fc9a8bfacb51be6653fe258dd4f3734f5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8799

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fecuq.co.za/XSRYdR1H?utm_term=answer+pronunciation+macmillan PDF link annotation
    • https://wct.goldcrownresort.com/magazine_files/files/tamosotupum.pdfIn PDF document text
    • http://damutech.kz/upload/2021/09files/210925040941168909sjrzn.pdfIn PDF document text
    • http://abhinavabhishad.org/userfiles/file/nezodigijilel.pdfIn PDF document text
    • http://zionhillfirstbaptistchurch.com/clients/73368/File/febuwelevufuxup.pdfIn PDF document text
    • https://adporly.emailingmanager.com/uploads/editor/file/wizelokiximujidukuragigow.pdfIn PDF document text
    • https://nstoplana.rs/ckfinder/userfiles/files/funanojubabejabitezu.pdfIn PDF document text
    • http://zbigniewrodak.pl/galeria/file/96716639081.pdfIn PDF document text
    • http://maidichike.com/upload/files/gakuxuvukukumokonupofa.pdfIn PDF document text
    • https://jv-cms.crazy-jessie.nl/uploads/files/35835622957.pdfIn PDF document text
    • http://barbusci.it/maisUserFile/file/72996763202.pdfIn PDF document text
    • http://eqletstalk.com/uploads/files/202111111816356313.pdfIn PDF document text
    • https://polenhosting.com/calisma2/files/uploads/votavavipupunut.pdfIn PDF document text
    • https://biomisszio.hu/tmp/87364893454.pdfIn PDF document text
    • http://fxlcd.com/upload/file/41282475784.pdfIn PDF document text
    • http://szboerzuo.com/upload/file/topukalekiboden.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_off0004c81a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c81a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c81a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C81A 10700 bytes
SHA-256: 6a2d280d50b66fad2c3a012563b6dfe43344af86d497bfddf21d21d81e141649
font_01_sfnt_off0004e0bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0BC 18128 bytes
SHA-256: ce9c28c311f6e3485ae0777e78a8bf7b139b4e5c5d7c584914ce920c0d993a97
font_02_sfnt_off00050fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FC7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9