Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f65bd95c35ca875…

MALICIOUS

PDF

313.5 KB Created: 2022-03-11 05:50:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: bb5c7b29f3971fbb21419e979b4ed70e SHA-1: 6a5dee365fd04cc1ce1b40d7afc9cf0bfd9a9cb2 SHA-256: 8f65bd95c35ca8752f768385b0df202b01d3fc6eedc23b7e2ba9012bca2e97ae
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6972

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://studiotipaldo.com/userfiles/files/vuditiwevexemalotenosuzof.pdf In PDF document text
    • https://nstyapi.com/resimler/files/sowozakafefesuj.pdfIn PDF document text
    • http://megaprestige.ru/uploads/files/wusavowajiz.pdfIn PDF document text
    • http://www.derbysignandgraphics.com/uploads/file/modaxuzekekizologowetu.pdfIn PDF document text
    • https://www.foodprocessingprojects.com/admin_assets/ckeditor/kcfinder/upload/files/66658233486.pdfIn PDF document text
    • http://auto-spec.ca/fck/file/xuvitutikefaranozo.pdfIn PDF document text
    • http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/538a6a4a149c9801da66a9c1f7c8a9d4/24934759072.pdfIn PDF document text
    • https://bonekarusa.com/contents/files/jamimajifeli.pdfIn PDF document text
    • http://venusitos.com/kcfinder/upload/files/33821201111.pdfIn PDF document text
    • https://kcharp.com/ckfinder/userfiles/files/wulexuxovululivezudeme.pdfIn PDF document text
    • https://x-leather.com/radsportfiles/file/56436815115.pdfIn PDF document text
    • http://studiotecnicodambra.eu/userfiles/files/75401280767.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16220df0041db9---53889681959.pdfIn PDF document text
    • https://funcarele.com/ckfinder/userfiles/files/witanep.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/590bec6ede064ffee76a45a14df986ac/lujarolerijo.pdfIn PDF document text
    • https://o-dance.com/upload/files/vamorox.pdfIn PDF document text
    • https://webneel.com/sites/default/files/images/blog/fckfile/guzofowunokamagi.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///91942887694.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2ef8210f4ee7640ba7514d89303bb367/43550096813.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/13849631496.pdfIn PDF document text
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/vukivemojaju.pdfIn PDF document text
    • http://fcvperu.org/data/fcvperu/userfiles/file/golujamojutibivili.pdfIn PDF document text
    • http://nj-rshb.com/v15/Upload/file/20222132055487571.pdfIn PDF document text
    • https://earhive.easyic.ro/userfiles/file/89891673676.pdfIn PDF document text
    • http://poorun.net/userData/ebizro_board/file/26893510292.pdfIn PDF document text
    • https://seltec.io/images/uploads/files/jeluxelukululapezokoz.pdfIn PDF document text
    • http://www.facyt.com.ar/ckfinder/userfiles/files/96441988110.pdfIn PDF document text
    • http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/terafatexagaxilujaf.pdfIn PDF document text
    • http://resortvillairene.it/userfiles/files/rizajaxenet.pdfIn PDF document text
    • https://rhkapadia.org/Admin/plugins/kcfinder/upload/files/43519877851.pdfIn PDF document text
    • http://immopolignano.lu/images/setesizasota.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=thermostat+manual+honeywellPDF 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_off00047838.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00047838.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47838 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00048f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F58 10544 bytes
SHA-256: 505698aa544e2a7ca013ec42fef4fa5c389c2f200483f105cbf81ec71666089d
font_02_sfnt_off0004a75a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A75A 18132 bytes
SHA-256: ad2a06da305935cb4df4f6444b3e00e9fc7ae4af621da12d49fa0a31fa71e635