Malicious PDF — malware analysis report

Static analysis result for SHA-256 425cf5ff03f30cd3…

MALICIOUS

PDF

89.2 KB Created: 2021-10-05 04:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 6b54c53d254348d6e731e6bc5499fc4b SHA-1: 1c5dd6149f9825826f2ef5ff554ffcdf59561007 SHA-256: 425cf5ff03f30cd39c77cbee258677ab80e1c5683bf2d14b76ce572d730957ee
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 7

  • 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 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://groupekheidri.com/ckfinder/userfiles/files/65692386710.pdf In PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/shs1i3faa7f5poqtmh9lg4s4b6/41387297469.pdfIn PDF document text
    • http://netflor.pl/upload/File/xofekijefaxikemixebi.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/3021fdf6ee59cae53d74b657eae61e6d/44351054901.pdfIn PDF document text
    • http://slsnn.ru/content/files/14721543147.pdfIn PDF document text
    • http://re-media.ru/foto/ck/files/norenopeteliwofukikuna.pdfIn PDF document text
    • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/zazuvakujiradejuresoxufaz.pdfIn PDF document text
    • http://ilkconstruction.com/Images/Media/files/93042831058.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/zonerisokuwez.pdfIn PDF document text
    • http://yuqiaohome.com/uploads/files/202109152251143646.pdfIn PDF document text
    • https://myparrotfood.com/user_files/files/85455273573.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149359c1b99b---26268426275.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/028d5348745f3bc03bae4d9ee1db17d7/mabugedi.pdfIn PDF document text
    • http://dominant.name/userfiles/file/kukuwanuzenukan.pdfIn PDF document text
    • https://argentinaproduct.com/ckfinder/userfiles/files/10697936230.pdfIn PDF document text
    • https://crownprolaw.com/userfiles/Proj_Name/files/16936741890.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614e4dc093a41---50903381360.pdfIn PDF document text
    • http://gekon.net/userfiles/file/kegeputomekugojudukab.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/noml02roefnb3vnsm9mghnc6c7/lidunuxabosudu.pdfIn PDF document text
    • http://theloanwala.com/userfiles/file/45701659578.pdfIn PDF document text
    • https://nobelboya.com/userfiles/file/31536722993.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=lenze+smv+frequency+inverter+manualPDF link annotation
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA2 20564 bytes
SHA-256: 9c6b644aedec2e5fe962238c9223951c8a7a57f8a74efe3e0b106fa10cc27ccb
font_01_sfnt_off000124b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124B7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CCE 10820 bytes
SHA-256: 598ef123b3aa5b87c063f904d00f33e300c1e17b8b6c9ea9ceb9ef1d66332acd