Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a136dcf8a5e93ce…

MALICIOUS

PDF

344.5 KB Created: 2022-03-18 14:58:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 29185351296b1143017916f9ea9919be SHA-1: 55d2daf3c24852640ae926e98ced910fc40e11c6 SHA-256: 5a136dcf8a5e93ceda13cddb12ddf556b04e456c37ac86868288b385498f5180
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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/XSRYdR1H?utm_term=best+android+police+scanner+app+2019 PDF link annotation
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fcf6abeebd7---34043230069.pdfIn PDF document text
    • http://www.eintracht-bayreuth.de/kcfinder/upload/files/43639575657.pdfIn PDF document text
    • https://servingltda.com/userfiles/file/36396189357.pdfIn PDF document text
    • http://ipublicity.cz/data/file/felutidigesos.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/4f45025fe4d90995037c12c0ad7dba7e/pegunorororuvedawesujizef.pdfIn PDF document text
    • http://adhunikjewellers.com/ckfinder/userfiles/files/70257380503.pdfIn PDF document text
    • http://dymenahealthcare.com/upload/fckeditor/file/12958954774.pdfIn PDF document text
    • https://veaodaibrahma.com/uploads/image/files/gujopubokizemowomow.pdfIn PDF document text
    • https://zibarajabi.com/cache/fck_files/file/jazokok.pdfIn PDF document text
    • https://easb-bd.org/public/files/assets/ckeditor/kcfinder/upload/files/51313591175.pdfIn PDF document text
    • http://mrybalko.ru/files/revovo.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620b14d5c04d9---nipabariteku.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/46006608369.pdfIn PDF document text
    • https://gskrem.ru/img/file/pedesesebovuletitudakot.pdfIn PDF document text
    • http://legrand-etika.su/kcfinder/upload/files/vazodiziluja.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/162339f0d66eff---teriputavap.pdfIn PDF document text
    • http://www.hausbaumesse.at/ckfinder/userfiles/files/danabikukedanajov.pdfIn PDF document text
    • http://fruitvita.com/files/files/60653779142.pdfIn PDF document text
    • http://www.physedu.in/newsite/userfiles/files/jipodakazovowafenijar.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1622fd7925f054---53060216235.pdfIn PDF document text
    • http://king-pro.com/userfiles/files/xubunikobixiponeref.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/furutofafisomota.pdfIn PDF document text
    • http://starroadchina.com/userfiles/file/9106837501.pdfIn PDF document text
    • http://tasarimak.com/ckfinder/userfiles/files/fuwixedevelosib.pdfIn PDF document text
    • https://hujanuang.com/contents/files/miramabapowenoramikugesag.pdfIn PDF document text
    • http://drthchowdary.net/userfiles/file/nejukidejirofe.pdfIn PDF document text
    • http://nagymester.com/admin/kcfinder/upload/files/5355320207.pdfIn PDF document text
    • http://worldsocialistpartyindia.org/ckfinder/userfiles/files/sajexadidude.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/162019cd1b4834---pevudagifibegejer.pdfIn PDF document text
    • https://concertwristband.com/resimler/files/xosozubaluke.pdfIn PDF document text
    • http://rbc-bezorgdiensten.nl/upload/34918713762.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_off0004f1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1B8 11020 bytes
SHA-256: d468f5e08fbdc8032e4fd655241346f3617b8348a6404f3f1b9224373b0741e8
font_01_sfnt_off00050b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B92 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000522ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x522AD 18400 bytes
SHA-256: e50c459d46c0088008377d7648614cd1f7885c7c81f8d61205e1134758617238