Malicious PDF — malware analysis report

Static analysis result for SHA-256 72baa8a5cc0c8e74…

MALICIOUS

PDF

98.7 KB Created: 2021-09-17 21:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 0484c3783cc3d16b7bed8474a409c0c8 SHA-1: 35269e944b9ffb5cffbe71107dbdd07743fa0156 SHA-256: 72baa8a5cc0c8e74531b8ef27dea06749a37ff65fe52ac27022b76682ce5520f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://ketchas.ru/uplcv?utm_term=www+com+video+2020 PDF link annotation
    • http://zatexpress.com/upload/userfiles/files/48892225196.pdfIn PDF document text
    • http://clairvoyantinfotech.com/demo/images/koxulufisira.pdfIn PDF document text
    • http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/pepiwikidefigalipofanajif.pdfIn PDF document text
    • http://centralgiving.com/media/userfiles/file/dosunazamorominiguvoxi.pdfIn PDF document text
    • http://ergakiland.ru/files/files/84786377258.pdfIn PDF document text
    • https://ltes2.tw-goods.com/UserFiles/files/9897325615.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/58124246342.pdfIn PDF document text
    • http://tropo-design.com/ckfinder/userfiles/files/58110631451.pdfIn PDF document text
    • http://af.ssla.ru/images/fornews/files/89993375360.pdfIn PDF document text
    • https://newshieldinsurance.com/demo/gsa/final/images/file/41915215716.pdfIn PDF document text
    • http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/xabarigamebolinagexele.pdfIn PDF document text
    • https://nstoplana.rs/ckfinder/userfiles/files/53222293302.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/cecb3416f1b3ecb2685cafa620ec7a24/rofavimovumefer.pdfIn PDF document text
    • http://fsgpj.com/upfolder/e/files/20210916195625.pdfIn PDF document text
    • http://retrievers.su/ckfinder/userfiles/files/47598846831.pdfIn PDF document text
    • http://xn--b1agpbmdtf.xn--p1ai/upload/file/51410188824.pdfIn PDF document text
    • http://hyundaihungthinh.com/uploads/images/files/sunizul.pdfIn PDF document text
    • https://nakatarikaszel.pl/app/webroot/userfiles/file/korejuwisikizob.pdfIn PDF document text
    • https://advik.net/userfiles/file/79139142902.pdfIn PDF document text
    • http://autostyle-japan.com/js/upload/files/294348371.pdfIn PDF document text
    • http://jlssj.com/qianzi/upfile/case_editor/file/bovurevibesoxarowem.pdfIn PDF document text
    • https://agencement-menuiserie-var.fr/stockages/files/sakabebobedodo.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_off000113bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113BC 10240 bytes
SHA-256: bb986193032c037305d9a727394075a12da8e1cbf27a9cab9ddf21e50d0c959f
font_01_sfnt_off00012aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ACA 22344 bytes
SHA-256: 85c7df1b56d941197ed441ac16d4f2f233e049cfa57df8501b8f40b85e70cfa0
font_02_sfnt_off000165bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x165BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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