Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8d6dfb358a59b1…

MALICIOUS

PDF

89.1 KB Created: 2021-08-26 03:36:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: d457526011196d70ad727e0db3605823 SHA-1: 06ca2fb409ef99a5ea746ed0159f5947fb65a71e SHA-256: aa8d6dfb358a59b1b347c83559fbc5368cc22f6df5e7c6ff80e4a0658f738ccb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 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.
  • 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://bagiez.de/userfiles/file/39332939085.pdf In PDF document text
    • http://hongdacable.com/d/files/jinamurevupo.pdfIn PDF document text
    • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/71429258667.pdfIn PDF document text
    • https://ilexgold.com/app/webroot/files/userfiles/files/pokig.pdfIn PDF document text
    • https://iword.de/userfiles/file/ponomamegegorujudinesaku.pdfIn PDF document text
    • http://jocoseatee.com/userfiles/files/xuwalukogapafeseteguzadok.pdfIn PDF document text
    • http://studiorapizza.it/userfiles/files/posidupimesigijo.pdfIn PDF document text
    • https://momsgardenfoods.com/ckfinder/userfiles/files/75175149365.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090812a8a736---33015990375.pdfIn PDF document text
    • https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609086e8cb3e3---mogulunebuza.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/2bfb8d96225b95354dc2f66fdf83af06/dirog.pdfIn PDF document text
    • http://bualuang101.com/backoffice/upload/files/vesosijanagubapezasixita.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081cad5a0da3---54957379166.pdfIn PDF document text
    • https://a5productions.com/home/a5pro/public_html/ckfinder/userfiles/files/86716325579.pdfIn PDF document text
    • http://ippinnudon.com/uploads/files/tetadibizoda.pdfIn PDF document text
    • http://kolasinprevoz.rs/slike/files/24576409833.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609060d3ee014---59767437733.pdfIn PDF document text
    • https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/i4rgbujl70eh9td9k0ebl3dce4/boririluzanumubafiwu.pdfIn PDF document text
    • https://vnjhanoi.com/upload/files/rukajidowu.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1b1388c5d---sulawika.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/d00199dcbae0952a22622f618d13e491/5257238941.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021051612203039.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae30ea440f0---guletimujedavex.pdfIn PDF document text
    • http://sjhrz.com/images/upload/File/78278793636.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099db50f1f35---juraparofivomekikene.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=fallacies+in+advertisingPDF 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_off0000f92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11146 10468 bytes
SHA-256: 72cf9ed49f73057731d55b2f4f1b1cce18513e10e74a43a8c887a3111ca99783
font_02_sfnt_off000128f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128F1 17196 bytes
SHA-256: f88fa6ce0a178b8d07a5650dd2a4cf5a3d805f8280bb151c24688cf7708d2434