Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e136cc938d9f3f9…

MALICIOUS

PDF

456.3 KB Created: 2022-01-18 16:55:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-09
MD5: 440bac9e033cfb18926bdffd2e466aa7 SHA-1: e3e98e60dd3dfc2f2fd6f12147fd5a7e200f5499 SHA-256: 5e136cc938d9f3f98dc438f9e4ba0d8a871b767e0beb051366455b3652a76a18
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/pmjp7bmgm8p0vkfkqkqkndnms0/jokosolesubuwogevij.pdf In PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/65d900138e25d1edb75358d205173693/lazinebavilimi.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/44b5aa91da83ddc356b7cd621ff54b60/wogobadagotikuvom.pdfIn PDF document text
    • https://monyetmesum.com/contents/files/1111127229.pdfIn PDF document text
    • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/56670645473.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/wusonimadewixuzuzeg.pdfIn PDF document text
    • https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/puzezujajov.pdfIn PDF document text
    • http://costruzionibulagna.it/userfiles/files/96754074168.pdfIn PDF document text
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1615b7d7d41441---2460624540.pdfIn PDF document text
    • http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/38404229124.pdfIn PDF document text
    • https://www.xyoaa.org/sites/default/files/files/10308561890.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/60560706187.pdfIn PDF document text
    • https://sharjahcements.com/images/bulk_images/files/39016650085.pdfIn PDF document text
    • http://studioghittigargnano.com/userfiles/files/gobafaxigusupiji.pdfIn PDF document text
    • https://dalba.net/other_files/File/7165060366.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132486ff2a5c---sokenedipetek.pdfIn PDF document text
    • https://www.supergram.cz/kcfinder/upload/files/75649174280.pdfIn PDF document text
    • http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/poninaviginamimizuduba.pdfIn PDF document text
    • http://tantusmarina.com/UserFiles/file/22232266548.pdfIn PDF document text
    • http://folientastaturen.pl/_data/file/30639208357.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161e5ddb830e8e---94399533531.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/a9i7fdkn1kaqje7cvh4ohrd7eg/49364241489.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a0783055b7f2c6dabb2b3eb94a0b6a9a/74342890108.pdfIn PDF document text
    • https://bomnuocebara.com/quangbasanpham/app/webroot/upload/image/files/riwep.pdfIn PDF document text
    • http://saktigroup.in/uploads/24824581996.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/5ea3cd9634b77f4b0c9ae1bf917b2578/6534066816.pdfIn PDF document text
    • https://inwebjor.ru/uplcv?utm_term=monthly+bill+tracking+excel+templatePDF 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 extracted file (font_00_sfnt_off0006b01c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006b01c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006b01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B01C 18812 bytes
SHA-256: 59695033509ce72450d33c99476a38f2c66368fc0fca687436d7a59878e360b5
font_01_sfnt_off0006e18a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E18A 11096 bytes
SHA-256: 354aea3f0b59426365cc4fbc19e351a5c737a2390a4e4911893bcfceb90bc3b1
font_02_sfnt_off0006fb11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB11 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336