Malicious PDF — malware analysis report

Static analysis result for SHA-256 03e6524b7c55daa3…

MALICIOUS

PDF

507.9 KB Created: 2022-01-19 18:06:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 40747dede27e8918959a30482ade7d09 SHA-1: 68bc338b3f21ed5364c2f1c755e3c43eaeeefe11 SHA-256: 03e6524b7c55daa3fc709560911bb661687ef5833b8df537f5ae1220e03b9ac2
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6035

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ketchas.ru/uplcv?utm_term=broadsheet+newspaper+size+uk In PDF document text
    • http://phuketdriveschool.com/userfiles/file/58506929100.pdfIn PDF document text
    • http://metall-press.ru/files/wagepojulosevosobojufug.pdfIn PDF document text
    • https://apexsafetyproducts.com/ckfinder/userfiles/files/47313116361.pdfIn PDF document text
    • http://ellev.fr/upload/files/9976378699.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/17780089114.pdfIn PDF document text
    • http://controlsystemco.com/cache/fck_files/file/jibijogaxokage.pdfIn PDF document text
    • https://nevjegyzek.eu/uploads/file/17050664412.pdfIn PDF document text
    • http://bukhatirhomes.com/userfiles/file/11927823901.pdfIn PDF document text
    • http://lianbang123.com/uploads/files/202112280421287455.pdfIn PDF document text
    • http://insightonafrica.in/userfiles/file/9272248671.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161e318b86b7a7---ruropepaluxefudimadi.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/161cbb8f6f1220---nakefozexedipafuwizusufan.pdfIn PDF document text
    • https://eminentland.com/admin/userfiles/files/84637887665.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161dad27dbd310---xesek.pdfIn PDF document text
    • http://hissekurban.com/resimler/files/robozapuvisepusirugez.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16170abf754169---mulegakite.pdfIn PDF document text
    • http://i-tos.com/userData/board/file/tuzupuzuduwezazivan.pdfIn PDF document text
    • https://www.ruchya.com.tw/upload/files/26287812458.pdfIn PDF document text
    • http://teewer.mn/ckfinder/userfiles/files/70763287245.pdfIn PDF document text
    • http://186086.com/upload/files/teketisodeluzitodiza.pdfIn PDF document text
    • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/64937796304.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_off000781e0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000781e0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000781e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781E0 18164 bytes
SHA-256: a55d77c134844f42f5789ac62d2005da2a42f2318287643e74595e5e8b9d3181
font_01_sfnt_off0007b15d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B15D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0007c801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C801 10836 bytes
SHA-256: d0fba5a3201a76947dec632fc3282e54df19d91c3c8f08b17e2c5fd795f5ffc6