Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bca7dbdbef03f3a…

MALICIOUS

PDF

147.5 KB Created: 2022-05-10 10:48:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 40ba42365a5a9ffe21c243474a2a1351 SHA-1: 2f9565b664f5ff33be63a1e85b7138bb218633c2 SHA-256: 3bca7dbdbef03f3afa1f8023555d2e99bd7e12132d00dcaab1ae53c3bc8c4419
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://tupnate.com/ckfinder/userfiles/files/gikirejixixuluwumip.pdf In PDF document text
    • http://nakajima-ya.com/user_data/image/file/nodoxurefotidig.pdfIn PDF document text
    • https://tuzibexidove.weebly.com/uploads/1/3/4/8/134852131/1674061.pdfIn PDF document text
    • http://johnmarzillier.com/ckfinder/userfiles/files/kemij.pdfIn PDF document text
    • https://lotitarep.weebly.com/uploads/1/3/1/3/131383228/nimere.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/14814952603.pdfIn PDF document text
    • http://take114.kr/FileData/ckfinder/files/20220409_DBDA8BFFEDC88962.pdfIn PDF document text
    • https://kvizek.hu/ckfinder/userfiles/files/92525968774.pdfIn PDF document text
    • http://kayseritupbebektedavisi.com/angora/userfiles/file/pukukozugazakuwapuki.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/24947704714.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d734753dc2---vofuxaruguf.pdfIn PDF document text
    • http://www.asap-recruitment.net/upload/file/39816032295.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/31139637001.pdfIn PDF document text
    • http://arkapizzeria.com/kcfinder/upload/files/788432127.pdfIn PDF document text
    • http://portretnifotografie.cz/img-content/files/40530825994.pdfIn PDF document text
    • https://fortworthdental.net/cmsCart/upload/file/jedazubirigopafuxax.pdfIn PDF document text
    • http://krallarintavugu.com/upload/file/5003289789.pdfIn PDF document text
    • http://homeopathyhk.com/files/11890363954.pdfIn PDF document text
    • http://mebizstekla.ru/userfiles/file/98639761073.pdfIn PDF document text
    • https://ctcitsupport.com/media/files/kebax.pdfIn PDF document text
    • http://cungcapbaoduongcuanhatban.com/upload/files/didesofod.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/85328896743.pdfIn PDF document text
    • http://xn--oy2b9bv81anouola.com/upload/file/202203021053141495.pdfIn PDF document text
    • https://sefoxobifi.weebly.com/uploads/1/3/6/0/136093232/kepijejopik_vidavo.pdfIn PDF document text
    • http://stoewebdesign.no/userfiles/file/79689644774.pdfIn PDF document text
    • https://cafij.co.za/YmrXLWy8?keyword=formulas%20in%20sap%20bpc%20system%20pdf%20filesPDF 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_off0001de0d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001de0d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001de0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE0D 18288 bytes
SHA-256: 329f87fcd5a571bdc191e5f3f09f9b2a06c21e5813eaacffe555dc945f302123
font_01_sfnt_off00020df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20DF9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00022610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22610 11112 bytes
SHA-256: d62e5706bb4f6a4a209272ad65a489448283a280bfda3246d7ca285bd8ae3e0a