Malicious PDF — malware analysis report

Static analysis result for SHA-256 450280177a5a7e3e…

MALICIOUS

PDF

396.6 KB Created: 2022-02-04 20:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: acc088b84f800e27285b6286ef4814c0 SHA-1: e4f12081a50fcd732c184176e645653858ed7a55 SHA-256: 450280177a5a7e3ee35de77a4823477004e663e180f097852d94c2017af555f9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8080

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://rockhousemethod.com/ckfinder/userfiles/files/dizekuj.pdf In PDF document text
    • http://live-lessons.net/lcj/web/uploads/assets/file/53171813144.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160de3709e6b41---xufulegivalun.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160debdd1ae506---83505882628.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/b6fe2e0d86a9e0aa0ea1aeff44119b1e/80861598251.pdfIn PDF document text
    • http://galeriejacqueselbaz.com/userfiles/file/26727285872.pdfIn PDF document text
    • https://cpaf.gdmnw.com/kcfinder/upload/files/10462986314.pdfIn PDF document text
    • http://sinice-rasy.cz/files/file/36195560039.pdfIn PDF document text
    • http://siva.re/app/webroot/js/kcfinder/upload/files/89915155378.pdfIn PDF document text
    • http://architettotoma.it/userfiles/files/bigirebetugomudepuwodar.pdfIn PDF document text
    • https://abzesolar.com/uploads/files/93586224035.pdfIn PDF document text
    • http://7profi.net/userfiles/file/durabamoxadafawilole.pdfIn PDF document text
    • https://petribax.nl/userfiles/file/49992295831.pdfIn PDF document text
    • https://hefcom-hydraulics.com/ckfinder/userfiles/files/56530040071.pdfIn PDF document text
    • http://extintoresorigen.com/images/editor/47204677902.pdfIn PDF document text
    • https://clumba-indoor.ru/files/files/87649967945.pdfIn PDF document text
    • http://azinsaghf.com/cache/fck_files/file/73864098151.pdfIn PDF document text
    • https://kangaroovietuc.vn/webroot/img/files/45914657935.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e91d2ed415a---87330122153.pdfIn PDF document text
    • http://ohappy.org/userData/board/file/7650336306.pdfIn PDF document text
    • http://rund.cz/UserFiles/File/tenazavum.pdfIn PDF document text
    • http://criminisiepartners.it/userfiles/files/20738368893.pdfIn PDF document text
    • http://pololanna.com/user_img/files/kijol.pdfIn PDF document text
    • http://arcstema.com/userfiles/files/83436533573.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=batch+manufacturing+record+formatPDF link annotation
    • http://judemusic.nl/fckdata/file/kadegokupiropegadilof.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_off0005c7f5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005c7f5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c7f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7F5 10860 bytes
SHA-256: 853ca5721dabb96c5cffd546d9477f10eb024808c87accf98224e8730ed0defd
font_01_sfnt_off0005e0ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0AE 17044 bytes
SHA-256: 8273cac69fba5ab529ec1c5115c90239f47993985f6cbc26614d412b279299c0
font_02_sfnt_off00060cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CF0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9