Malicious PDF — malware analysis report

Static analysis result for SHA-256 018be4339772fa9f…

MALICIOUS

PDF

590.2 KB Created: 2022-04-03 02:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-08
MD5: 63b9f3b671251e994ca3e1eeadaa8954 SHA-1: a5e1e7b5801d32201529b6969b75c8b8c5c3f4ca SHA-256: 018be4339772fa9f28b62d9398ae9103c214eb5c2fe8396348758455c706be33
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4364

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 http://aurora-c.jp/files/files/94244202429.pdf In PDF document text
    • https://ddtoyz.com/ckfinder/userfiles/files/tibumuxu.pdfIn PDF document text
    • https://triatlonshop.cz/userfiles/file/vorawesilomezoxerosu.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/9558432329.pdfIn PDF document text
    • https://mlmrockstars.com/ckfinder/userfiles/files/55604971365.pdfIn PDF document text
    • http://flexibordj.com/app/webroot/js/kcfinder/upload/files/87133623193.pdfIn PDF document text
    • http://ep9.cz/kcfinder/upload/files/tulikibipejivojalago.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/75bf201af9884d5c33bc473d35b77139/lerot.pdfIn PDF document text
    • http://reyazahmad.bscsaoner.in/ckfinder/userfiles/files/gewakenoker.pdfIn PDF document text
    • https://www.globalportsholding.co.uk/ckeditor/kcfinder/upload/files/51595090463.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/dekokijipefivatuz.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/162161e5f28c8b---xomawomuluwabidajotetizal.pdfIn PDF document text
    • https://fleuriste79.fr/ckfinder/userfiles/files/75531012552.pdfIn PDF document text
    • https://istanajpdua.com/contents/files/85656564965.pdfIn PDF document text
    • http://bulmarconsult.com/files/58234003376.pdfIn PDF document text
    • http://avandcie-energy.fr/ckfinder/userfiles/files/21120811725.pdfIn PDF document text
    • http://raiz.jp/kcfinder/upload/files/japawedilugepiw.pdfIn PDF document text
    • http://globalsublimation.net/uploadfile/files/15870423320.pdfIn PDF document text
    • https://rozetki-merten.su/kcfinder/upload/files/pifimesitimekasobonubanu.pdfIn PDF document text
    • https://loyallcanada.com/editor_files/file/nojexi.pdfIn PDF document text
    • https://damiel.eu/userfiles/file/guzizulasivezokirozokad.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=woodsmith+plans+combination+router+tablePDF link annotation
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16201f85077277---vuturodetunenikejuletut.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_off0008cdea.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0008cdea.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008cdea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDEA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0008e5fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5FC 16516 bytes
SHA-256: 1546e7a2c0630ee7cdd53092aa9fd5e4e6800f287bf6d3da54e86868bfb60a3b
font_02_sfnt_off0009108b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9108B 11012 bytes
SHA-256: 7d181dcb4cf7b49e74622e9f6ebe8260911179779288c53e2b4c917ec780c98a