Malicious PDF — malware analysis report

Static analysis result for SHA-256 4504688bd8288e65…

MALICIOUS

PDF

367.7 KB Created: 2022-03-19 01:09:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 9d3a96131de01eb3b8b9d791b494c0b6 SHA-1: f769d068bc0e31f00aa732d67bf3709267225247 SHA-256: 4504688bd8288e658efea1ac040e216a587848a3f25d8ebcf4670045a515ac2a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8080

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://yubit.co.za/XSRYdR1H?utm_term=merry+christmas+font+style+free PDF link annotation
    • http://xn--2-7sbddqrtdw3be6jua.xn--p1ai/userfiles/file/mobesinizum.pdfIn PDF document text
    • https://oldalunk.hu/userimages/files/kejofurumowip.pdfIn PDF document text
    • http://discus-rus.ru/upl/file/naxosibibanoguxunasi.pdfIn PDF document text
    • https://manorhair.com/uploads/files/202202250229283749.pdfIn PDF document text
    • http://ultrarelaxedcbd.com/newerac2c/userfiles/file/doxabutagodora.pdfIn PDF document text
    • http://architetturaurbanistica.it/userfiles/files/kigepijogogiretepanofapok.pdfIn PDF document text
    • https://www.apsar.es/assets_back_office/js/plugins/kcfinder/upload/files/wapidulol.pdfIn PDF document text
    • http://chinalabware.ru/d/files/ramotatepoj.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/resizixipelejamuwu.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/23872953097.pdfIn PDF document text
    • http://classicalgardenornaments.com/uplds/file/guxajazekufojijopigabubok.pdfIn PDF document text
    • https://optical-axis.com/uploads/files/202202240950053745.pdfIn PDF document text
    • https://www.globalportsholding.co.uk/ckeditor/kcfinder/upload/files/96335494032.pdfIn PDF document text
    • https://santa.sg/images/users/00000000/files/binelorafekatigadaz.pdfIn PDF document text
    • https://rozetki.moscow/kcfinder/upload/files/wamijizezi.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1622706e34d8a5---46937648319.pdfIn PDF document text
    • http://kytero.com/admin/kcfinder/upload/files/15223913074.pdfIn PDF document text
    • http://www.grifin.sk/files/89962979117.pdfIn PDF document text
    • https://ketex.com/trcgp/ckfinder/userfiles/files/zimulogam.pdfIn PDF document text
    • http://lapawan15.com/shop/fck_file/file/numupamujas.pdfIn PDF document text
    • https://kuzeyilac.com/resimler/files/10095554763.pdfIn PDF document text
    • http://abdobson-new.simplywebeditor.com/site-uploads/68048561621.pdfIn PDF document text
    • https://etravelbox.com/scgtest/team-explore/uploads/files/vixasexuvepuwuduwetat.pdfIn PDF document text
    • http://seoulgreeter.com/userData/board/file/24719595189.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_off00054d7b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00054d7b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D7B 10708 bytes
SHA-256: da70cbea81e88d659faaa495d656b8b68f086aa681a28c66ec15e7d9fab5a802
font_01_sfnt_off000565ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565EF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D0A 18640 bytes
SHA-256: 8333512c2c97082d5134e1db3d2088705b6f9f88987ad58d378e876245139971