Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc66bafc0147219…

MALICIOUS

PDF

178.8 KB Created: 2021-12-05 20:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: fdd5d56240005209d9697996eb5c6b64 SHA-1: 033ec40c44a61ef0dbd2af907180cf7a0e3d0900 SHA-256: 1dc66bafc01472196ae9537db2cb07acf20166cafc7dbc8c876df061cf4c5640
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9754

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 https://aquarell.ro/userfiles/file/kolavolufodezurutumopodo.pdf In PDF document text
    • https://mariellatriolo.it/public/file/51930160307.pdfIn PDF document text
    • http://naturestuff.nl/siteimages/file/xazidomizuzabatesesesi.pdfIn PDF document text
    • http://dermatologomiguelgallego.com/miguel/fck/file/senexozeko.pdfIn PDF document text
    • http://safedoorsystems.com/cmsimages/file/10813932783.pdfIn PDF document text
    • http://gz-theoutfit.com/UploadFiles/FCKeditor/20211030141420.pdfIn PDF document text
    • http://mtreurope.com/ckfinder/userfiles/files/20811782071.pdfIn PDF document text
    • https://abandassociates.com/ckfinder/userfiles/files/lewukizi.pdfIn PDF document text
    • http://toflight.mobi/attachment/ckeditor/files/40fc6fe2589b0e18470a8273fd4102cd.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/nojudananefazipuneludaxuj.pdfIn PDF document text
    • http://jumpstart.mobi/ckfinder/userfiles/files/kixumukovulonagezunima.pdfIn PDF document text
    • http://landonintergroup.com/ckfinder/userfiles/files/77645976949.pdfIn PDF document text
    • http://liweisteel.co.th/ckfinder/userfiles/files/vimedofax.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614256f16440b---84336568132.pdfIn PDF document text
    • http://chipublichouse.com/ckfinder/userfiles/files/pokenujupasulal.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/c6161b6ec0cefacebc8526cdc95caa74/61935474380.pdfIn PDF document text
    • https://verticala.ro/images/userfiles/59850714700.pdfIn PDF document text
    • http://thietbidienmpe.net/upload/files/86316162171.pdfIn PDF document text
    • https://hamayeshniroo.com/shop/file/16155221368.pdfIn PDF document text
    • http://adec-interiors.net/Uploads/file/balulizi.pdfIn PDF document text
    • http://hun777.hu/_user/file/kakoreturidemoja.pdfIn PDF document text
    • https://fond.ru/userfiles/file/92287883455.pdfIn PDF document text
    • http://hykylalumni.org/userfiles/basojuka.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HTGXzuRVGb4/uplcv?utm_term=the+complete+contest+prep+guide+biolayne+pdfPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00025766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25766 11384 bytes
SHA-256: b88074f9b2a441f587622fb296adc42f5fb7476e4cea01df6746e2a19da8adc6
font_01_sfnt_off000271a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x271A1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00028840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28840 19696 bytes
SHA-256: 65dd8c3793678eb303e3c0db9242f3a26eabce726b99251a3e5be6313ce0d590

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