Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fd780997554971…

MALICIOUS

PDF

83.2 KB Created: 2022-04-21 12:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 56d738d460869c38bda8796953253336 SHA-1: c08f8f7a9bb6ffccde10e57832d11d6a7c5ceba4 SHA-256: a4fd780997554971bea8d15db3cafa75d0f74000379639187bb2d21c84cc0819
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fecuq.co.za/YmrXLWy8?keyword=innate%20knowledge%20plato%20meno%20summary PDF link annotation
    • http://eluvial.com/sites/all/sites/eluvial.com/files/33792303071.pdfIn PDF document text
    • https://vudulami.weebly.com/uploads/1/3/5/9/135964857/nufokot.pdfIn PDF document text
    • http://moriefrusca.com/userfiles/files/vagizibelasojuzo.pdfIn PDF document text
    • https://hladiagnostico.com.br/kcfinder/upload/files/mowabetetozexesakewi.pdfIn PDF document text
    • https://zuripuwa.weebly.com/uploads/1/3/2/7/132740693/00665a61e20a.pdfIn PDF document text
    • http://suaups.net/userfiles/file/39127937129.pdfIn PDF document text
    • https://sepilibajegaf.weebly.com/uploads/1/3/4/6/134667793/timixisewajolavov.pdfIn PDF document text
    • https://mobile-translator.eu/app/webroot/media/files/84236882785.pdfIn PDF document text
    • https://bkdesign.ee/userfiles/file/rururetomevarabuwumodov.pdfIn PDF document text
    • https://bixixadapi.weebly.com/uploads/1/3/5/3/135321875/rejimegutudi.pdfIn PDF document text
    • https://bkr.jetdesign.pl/files/files/lutitudafuguwuwuludade.pdfIn PDF document text
    • https://kixajunurepe.weebly.com/uploads/1/3/1/4/131406563/gowezamajuru.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1625bdad7f3c04---22409086493.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/wupoxolinukodijofutisugew.pdfIn PDF document text
    • https://tadazumagitose.weebly.com/uploads/1/3/3/9/133987040/4499832.pdfIn PDF document text
    • http://dogomanhnghia.com/uploads/files/67278486699.pdfIn PDF document text
    • https://dm288.rs/slicice/file/nixagozenog.pdfIn PDF document text
    • https://danikobunib.weebly.com/uploads/1/3/4/7/134755608/4685958.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/89a4d2491dd1c2099a731ad6050eae8f/67159532463.pdfIn PDF document text
    • https://bowserqualicumbay.gocascadia.com/images/cms/file/xefujavowurufawuda.pdfIn PDF document text
    • https://kvzriu.org/images/file/14455651411.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/wizagizedezoletifamib.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/70142062774.pdfIn PDF document text
    • https://mivojunap.weebly.com/uploads/1/3/4/7/134720575/luvaxifob-laxakubepesodu-gubeviza-zorudub.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_off0000df4f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000df4f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4F 10984 bytes
SHA-256: 93860e95e90ba0fd4921cd288d9226eac07e2f71801cc9dbd663537ab06970ce
font_01_sfnt_off0000f8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000110c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110C6 17816 bytes
SHA-256: 1e14c5a7de2168caac5050b804ebbf64c5616e1a881d213be7d376dff60e8562