Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd475971604c9b6…

MALICIOUS

PDF

81.7 KB Created: 2021-09-10 16:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 8e93b721d952065416119aad94f36524 SHA-1: 67cfd29af05e36be2d4fa549672d27429fee4b7f SHA-256: ddd475971604c9b6a2308f85cb0bc785462ec0c32c710299709659bf142d0f1e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://edmo-cars.nl/images/file/ravodajetowimuzugadat.pdf In PDF document text
    • http://utpcomp.ru/uploads/files/1572572202.pdfIn PDF document text
    • http://ndt-ultratech.com/files/gutatazesoleviti.pdfIn PDF document text
    • http://laboratoriologos.it/userfiles/files/45479584670.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/b8547097ff9635c7d40dd66a73efd8e4/76898789956.pdfIn PDF document text
    • http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/teroborevebidupumogimoda.pdfIn PDF document text
    • http://globalsocialwlefaresummit.com/app/webroot/uploads/ckuploads/files/wenagej.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/76588680117.pdfIn PDF document text
    • https://activsport.ro/userfiles/file/42116264372.pdfIn PDF document text
    • https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/29960617082.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/51240876684.pdfIn PDF document text
    • http://oipipleszno.pl/userfiles/file/nekarimiwu.pdfIn PDF document text
    • http://postelezmasivu-brno.com/ckfinder/userfiles/files/81261752983.pdfIn PDF document text
    • http://babyshelter.net/assets/upload/files/tiroxirakujatekixate.pdfIn PDF document text
    • http://gemaeldeundobjekte.de/uploads/files/47755605860.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/9598934749.pdfIn PDF document text
    • http://elisa5888.com/shopadmin/upload/files/rilasomovavagi.pdfIn PDF document text
    • http://meubelenindex.nl/images/uploads/venamivafemaxilaw.pdfIn PDF document text
    • https://producedepot.us/userfiles/files/bamogomazosulexoxorabome.pdfIn PDF document text
    • https://acavacecio.it/userfiles/files/rebugigas.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e33827ae1---tipilowenebiditusakole.pdfIn PDF document text
    • http://uptownfallschurch.com/uploads/files/loxabawatolefofemo.pdfIn PDF document text
    • http://jfhcoaching.nl/userfiles/files/79401450015.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/bf23d586f9371b79d72ae9438220556b/27596013476.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+send+pictures+from+iphone+to+androidPDF 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_off0000dab7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dab7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB7 17440 bytes
SHA-256: b53b2911c84cf5c090cae2742a7102995684a236f777820c25e7ee6a1c7a12c6
font_01_sfnt_off0001077a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1077A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F91 11016 bytes
SHA-256: 6316fe24b4b93f2f67ef7a6e2ede4b651dc26cb050092a3d0bf70373e278d4c2