Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb07d45ae6c02638…

MALICIOUS

PDF

423.2 KB Created: 2022-02-18 01:03:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: aef5097300c765e5b91d2ccf4760d26b SHA-1: 2e3f37baa351de95a3ba911d7e623f63ea44eb56 SHA-256: fb07d45ae6c02638923f7a2a82245550cbfa149c60cfedd8df74ae4e9c2589b6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5431

Heuristics 6

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=inflammatory+bowel+disease+guidelines+pdf PDF link annotation
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16116c8001ed6b---tufumewevojojezejo.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161f90fe876d76---85309698334.pdfIn PDF document text
    • http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/96543537355.pdfIn PDF document text
    • https://4cmedica.com/ficheiros_upload/file/vinego.pdfIn PDF document text
    • http://computer-rudolstadt.de/upload/file/48939829234.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/tesuteb.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161da4e8c4ebe3---19990754650.pdfIn PDF document text
    • https://aordonez.com/images/contenidos/files/57942179791.pdfIn PDF document text
    • http://wcsps.com.tw/ckfinder/userfiles/files/56525808334.pdfIn PDF document text
    • http://tuderprogettazione.it/userfiles/files/wupimejolejagasek.pdfIn PDF document text
    • http://massimobertoarchitetto.com/userfiles/files/15815863800.pdfIn PDF document text
    • http://pcserviszlin.cz/ckfinder/userfiles/files/2195007892.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/pelirokiwomo.pdfIn PDF document text
    • http://pjteam.hu/uploads/bomipuwasejen.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/056861aa27ba784dd0ad01a2a9b8dd43/38999115633.pdfIn PDF document text
    • https://studioadees.pl/file/16644457629.pdfIn PDF document text
    • http://bionazorat.uznature.uz/userfiles/file/furagarebubasafofob.pdfIn PDF document text
    • http://www.rztria.ru/kcfinder/upload/files/9257087214.pdfIn PDF document text
    • https://www.anefescuela.es/files/ravat.pdfIn PDF document text
    • http://medicapoland.pl/uploaded/file/75020910986.pdfIn PDF document text
    • http://studiobaldizzone.com/userfiles/files/pitosomabifolagazisotup.pdfIn PDF document text
    • http://kcemsp.org/upload/editor/file/50121700358.pdfIn PDF document text
    • http://mezon.jp/userfiles/file/nezutilodixaxofunusu.pdfIn PDF document text
    • http://tamezou.com/upload/ckfinder/files/33434870033.pdfIn PDF document text
    • http://letnipohar.cz/upload/file/10500560572.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/79470847976.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b62fba43f2---78077523234.pdfIn PDF document text
    • http://kalikraft.com/images/file/31319232522.pdfIn PDF document text
    • http://epmresearch.org/userfiles/files/57126377868.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_off00062552.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062552.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62552 21144 bytes
SHA-256: 0aa88e9202517f6a9b6383f049490289212807760b94ca0eb879c83a34253d51
font_01_sfnt_off00065c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006734b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6734B 11232 bytes
SHA-256: cae08201c2b957cdb72e2caa3e46296ed82c548e5d14ac7ee7cf30fb8f2032d2