Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bc1ec371c58a98…

MALICIOUS

PDF

83.4 KB Created: 2022-04-18 12:36:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: cbc00fd801016237c8b1d0c1fe063c6e SHA-1: b0af64f6fcc7aebb3b93a110cfbce37dafc89472 SHA-256: 72bc1ec371c58a987e5c85797fbe7def747ab29e9c156d7237a96a361873cf98
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • 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 https://yoyep.co.za/YmrXLWy8?keyword=samsung%20ml%202165w%20toner%20reset%20chip.rar In PDF document text
    • http://ecovn.vn/uploads/news_file/56589819249.pdfIn PDF document text
    • https://kopudezazuxunob.weebly.com/uploads/1/3/1/4/131408344/posasi.pdfIn PDF document text
    • http://qataminational.com/uploaded_files/userfiles/files/vejarivemuzasub.pdfIn PDF document text
    • http://blue-balloon.pl/files/files/53138480333.pdfIn PDF document text
    • http://www.vycvikpreziti.cz/upload/files/67710391447.pdfIn PDF document text
    • http://zussobrance.sk/grafika/dokumenty/nuresibisef.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621174edb78a4---takokatuduluv.pdfIn PDF document text
    • http://cungcapluonech.com/upload/files/12541734509.pdfIn PDF document text
    • https://floridainvestment.cz/files/file/voxuliwuxovudatujuweno.pdfIn PDF document text
    • http://imi.vc/upload/files/vovale.pdfIn PDF document text
    • https://nada70.org/userfiles/file/vemawex.pdfIn PDF document text
    • http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/55823251267.pdfIn PDF document text
    • https://bonorira.weebly.com/uploads/1/3/5/3/135346760/9566595.pdfIn PDF document text
    • https://nilesezijifata.weebly.com/uploads/1/3/4/8/134885493/samepogeda.pdfIn PDF document text
    • https://tikatalog.sk/_files/file/titepo.pdfIn PDF document text
    • https://gozaxuvo.weebly.com/uploads/1/3/4/6/134612917/5287825.pdfIn PDF document text
    • http://ssss-sangam.com/userfiles/file/lasutadiribebo.pdfIn PDF document text
    • http://telewebmarketing.com/FCKeditor/file/25288519905.pdfIn PDF document text
    • http://kutyakozmetikustanfolyam.hu/kcfinder/upload/files/57727993862.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/f3d9b0f75a97ecb7dacb9a2e03681c32/nolarezezotusekezowogope.pdfIn PDF document text
    • https://lizelizana.weebly.com/uploads/1/3/1/4/131409616/16bfd1.pdfIn PDF document text
    • https://orangerun.re/photo/files/32164320690.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 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_off0000d6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ef0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0C 11624 bytes
SHA-256: 7bb2f0cd4ddd26c3041393975b5240688035e50da92edcaebf632ab43d64abfe
font_02_sfnt_off00010aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA9 20588 bytes
SHA-256: b69bb3cbac249b0e011719b18288cfc634a56cef424333207a112a56c94e5b75

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