Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6955987728a1d3…

MALICIOUS

PDF

85.5 KB Created: 2021-09-12 22:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: f65dc3ad945475387f4e229a136a2a38 SHA-1: 59ef1ac76d54487ab7a93077052e885295ccb734 SHA-256: 2b6955987728a1d3161ac0c0c87738e6da3d6a770bfbbe69ce3c1d7dce1beb34
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 https://bandotrading.it/uploads/file/sekupidiparujobojidena.pdf In PDF document text
    • https://99shayari.in/userfiles/files/10300492076.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2021-9-6/20210906143122647153.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/kl7efttrhf955nkkbuplc6lvhh/nigisikemosokupelezujola.pdfIn PDF document text
    • https://preciseenergygroup.com/media/rovab.pdfIn PDF document text
    • http://tiendanatacion.com/noticias/files/rezudegonejoxamevek.pdfIn PDF document text
    • http://autoklej.pl/app/webroot/media/files/31537136264.pdfIn PDF document text
    • https://duongthuy.net/userfiles/file/32764896079.pdfIn PDF document text
    • https://johanbjerke.se/userfiles/file/2367666857.pdfIn PDF document text
    • http://sdds.be/userfiles/file/zugapuvuvodazolubi.pdfIn PDF document text
    • http://sungwoo-n.com/userfiles/file/14512780995.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/67d31e90a6185aa64d8b28b68cc13ee1/65675732861.pdfIn PDF document text
    • http://cuahuyhoang.com/media/ftp/file/tesidaf.pdfIn PDF document text
    • http://haciogullari.com/depo/sayfaresim/file/ludem.pdfIn PDF document text
    • http://paitoonbox.com/userfiles/files/59341401470.pdfIn PDF document text
    • https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/4271006966.pdfIn PDF document text
    • http://internet-trade.cz/UserFiles/file/87867898224.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161352c9f270db---manivojabuwokodafokumole.pdfIn PDF document text
    • http://sp3siemianowice.pl/userFiles/files/botisuvonus.pdfIn PDF document text
    • http://ordineveterinarireggioemilia.it/userfiles/files/mamaxikupevetig.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135ee3b44d5a---53933883042.pdfIn PDF document text
    • https://fanaf.org/article_ressources/file/zezurejumanunorezomavozo.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/nijurerozirexe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=harry+potter+and+the+order+of+the+phoenix+free+full+moviePDF 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_off0000e6e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF3 18452 bytes
SHA-256: 2379ffbd3de863fa961926b44f61001a75470a57f4c7d2d1630cc216a2ef840c
font_02_sfnt_off00012f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F30 10968 bytes
SHA-256: 04cc4622be9d26eba9e9cb14aef89228b4613c297c659ec2d822e163c13710f3