Malicious PDF — malware analysis report

Static analysis result for SHA-256 552710ea307e45b0…

MALICIOUS

PDF

282.0 KB Created: 2022-04-05 19:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 762f3fefebff39563921367f72166958 SHA-1: 1ba53a2aec1b4ae1f4bf1d4ca97d3fc28ae593a6 SHA-256: 552710ea307e45b076829f512e9fa4a7061d1ff7ee783eed85d6e63aa61a182e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9448

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://norin.co.za/XSRYdR1H?utm_term=tum+ho+rockstar+song+download PDF link annotation
    • https://zapret-rf.org/web/img/podborky/files/96227869722.pdfIn PDF document text
    • http://www.iece.in/userfiles/file/69431697098.pdfIn PDF document text
    • http://otevrel.eu/ckfinder/userfiles/files/97561594713.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620e02ba9ce9d---nolekaveme.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202202132016553954.pdfIn PDF document text
    • http://templeton.sk/userfiles/file/kafugavezigin.pdfIn PDF document text
    • http://bowlingkillers.com/imgdb/files/75061602177.pdfIn PDF document text
    • http://gamenavigator.com/userfiles/files/vudorawi.pdfIn PDF document text
    • http://www.admion.cz/upload/files/64412337125.pdfIn PDF document text
    • http://curiosin.com/uploads/files/wowupufivatupijapuz.pdfIn PDF document text
    • http://limobebe.com/userfiles/files/pixamabekapefuj.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/gimalikuda.pdfIn PDF document text
    • http://minhphucvietnam.com/uploads/userfiles/file/dugaxizadik.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_off0003f85b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f85b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f85b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F85B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004106d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4106D 18848 bytes
SHA-256: dfb5a67c46ce58af6dd46f4561f3095443aff71315834b0d2770647a93034f4c
font_02_sfnt_off0004416b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4416B 10836 bytes
SHA-256: 7a621f969dde273647fa13dbf04f60b7248fd277406852fbde9d21b981aa2fe9