Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc566f881b8f46f…

MALICIOUS

PDF

69.4 KB Created: 2021-10-03 07:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: bb214503efac21d345fe619be3c50dd5 SHA-1: db30b29c7cf77c19f821ad98813c999aed9d24f2 SHA-256: 3bc566f881b8f46feb4f98462c0321ddcfd420ae4c86c3bda04e3bc6d2ec5766
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://www.yevres.fr/ckfinder/userfiles/files/jepajezofepixosatewo.pdf In PDF document text
    • https://falconshipping-uae.com/userfiles/files/lixetabufipevu.pdfIn PDF document text
    • http://aqcorth.specialty-match.com/upload/files/68823911192.pdfIn PDF document text
    • http://drivescuolaguida.it/userfiles/files/91685402331.pdfIn PDF document text
    • http://kangshi-you.com/uploads/files/202109100946424648.pdfIn PDF document text
    • http://huichem.com/ckfinder/userfiles/files/bapotepipafekumik.pdfIn PDF document text
    • https://24emk.ru/ckfinder/userfiles/files/81773742945.pdfIn PDF document text
    • https://skywaynepal.com/userfiles/file/kaxitenukabu.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad424bfcac---fupajobijobetilirof.pdfIn PDF document text
    • https://basisnomor.com/contents/files/redolukutisirisudewete.pdfIn PDF document text
    • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/24258241903.pdfIn PDF document text
    • https://wcfkenzi.com/ckfinder/userfiles/files/fajub.pdfIn PDF document text
    • http://thebankcardservices.com/uploads/files/22063211480.pdfIn PDF document text
    • http://metall-press.ru/files/14249380544.pdfIn PDF document text
    • http://soles2walk.com/data/file/87162760775.pdfIn PDF document text
    • http://coyada.com/up_images/up_images/jimixufogal.pdfIn PDF document text
    • http://olympicthesportshop.in/uploads/20366303313.pdfIn PDF document text
    • http://roomyab.ir/basefile/roomyabir/files/44603509501.pdfIn PDF document text
    • https://dammesliepas.lv/ckfinder/userfiles/files/8043789295.pdfIn PDF document text
    • https://newshieldinsurance.com/demo/gsa/final/images/file/daxunilewese.pdfIn PDF document text
    • https://texigo.tw/upfile/files/2021/10/03/xatisafameduvo.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/l51c58v733v5phcb92rr3jvah3/zomizurag.pdfIn PDF document text
    • https://wastran.ru/uplcv?utm_term=how+to+make+a+remix+in+garagebandIn PDF document text
    • https://artgallery.devctn.com/ckfinder/userfiles/files/47518807889.pdfIn PDF document text
    • 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_off0000af14.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000af14.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF14 10788 bytes
SHA-256: a2d9e5a9abf57b761eca20aa4e32a797be66a428fa14fe9e5bb028a39ec97d6e
font_01_sfnt_off0000c7b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7B6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000dfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC8 15964 bytes
SHA-256: bd2ba5718f2ffef75a5a046648f263bdc5cb23b4813906f9cc1cb8c4d5f01fe5