Malicious PDF — malware analysis report

Static analysis result for SHA-256 782b128b809b593b…

MALICIOUS

PDF

81.6 KB Created: 2021-10-19 17:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 46f0b29343731eebb3b299c55305ad39 SHA-1: fee2f15b5cbdc842df57d95efbb6f7583de7c639 SHA-256: 782b128b809b593b103733227d5fde5a64031c7e0a4cff3fbd7fdcd7d03e51ec
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://obrazyramix.pl/userfiles/file/jozuwu.pdf In PDF document text
    • http://titadoorbinhduong.com/upload/files/35423627195.pdfIn PDF document text
    • https://www.savininkai.lt/ckfinder/userfiles/files/rixonajogexikezeda.pdfIn PDF document text
    • http://odesignlab.ru/admin/ckfinder/userfiles/files/88296261155.pdfIn PDF document text
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/mrpqru6sgf85gpr9cda212e6nv/6992052058.pdfIn PDF document text
    • https://bonaparte.cappencms.com/templates/files/79627628532.pdfIn PDF document text
    • https://tucarrorentacar.co/ckfinder/userfiles/files/zeliletenewotox.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/161448bff7ef6f---wajulevufugivirakazef.pdfIn PDF document text
    • http://webinaris.org/ckfinder/userfiles/publics/files/62359612248.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614f2ba44b3d4---7426928872.pdfIn PDF document text
    • http://newcompanyindia.com/admin/userfiles/file/17810650617.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/48010e30028ca4c28d93831fd4a3eab4/gusodiwatorize.pdfIn PDF document text
    • https://sainaudit.mn/File/jaxatawiwojajunazu.pdfIn PDF document text
    • http://kanalizace.instalace-charvat.cz/userfiles/file/84509763562.pdfIn PDF document text
    • http://smsalumni1971.com/apadmin/uploads/userfiles/files/92980389169.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/34039547361.pdfIn PDF document text
    • https://vidaleve.net/ckfinder/userfiles/files/84826526937.pdfIn PDF document text
    • http://mp-hd.de/data/aktualnosci_imgs/file/gepunis.pdfIn PDF document text
    • https://artesapanaderia.xyz/aym_image/files/sazofusivuniju.pdfIn PDF document text
    • https://ms01bet.net/contents/files/63273280622.pdfIn PDF document text
    • http://tccsrl.org/userfiles/files/bitabejok.pdfIn PDF document text
    • http://fitviewer.com/files/file/papuwirovipumobujo.pdfIn PDF document text
    • http://puntolinea.org/userfiles/files/54081826178.pdfIn PDF document text
    • http://yoshitomo-kokubunji.com/jcfiles/file/39174967725.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/6Zflnl449io/uplcv?utm_term=bojhena+shey+bojhena+watch+online+free+hdPDF 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_off0000d8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D9 11096 bytes
SHA-256: 7b1a06e6b010484616541ea1c585b808e2ec2ab6b2d2958e6d40befa31cf18bc
font_01_sfnt_off0000f2b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC5 17900 bytes
SHA-256: cd2c283a1a7bdf290d3fbb9b99d860cd93d44cdc50364d6afba19d19aef176ea