Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b623802950eef5f…

MALICIOUS

PDF

82.3 KB Created: 2021-11-10 05:09:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 7b9d4c59ce4ac621a681b7e2390ac65d SHA-1: d9b4e610a6e4c889c3c7d6b2aa22052f35e4f79d SHA-256: 2b623802950eef5fb9ce5c8f81ef2b6d5dc8d682bee12c9297047a48bc9272d6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • 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.
  • 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 http://greenvisioninternational.gm/userfiles/file/1077508906.pdf In PDF document text
    • http://lamorenj.com/userfiles/file/74802928496.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/59995962806.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/44722673212.pdfIn PDF document text
    • https://onhimalayas.com/ckfinder/userfiles/files/gagoramen.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/50742776923.pdfIn PDF document text
    • http://tech-in.info/bramy/userfiles/file/radotubil.pdfIn PDF document text
    • http://hidropro.hu/upload/rozixazusupasarip.pdfIn PDF document text
    • http://korzo-galeria.hu/files/file/31561466515.pdfIn PDF document text
    • http://wpchkg.com/upload/image/file/xofimosimimisu.pdfIn PDF document text
    • http://avvolodin.ru/upload/file/70097679142.pdfIn PDF document text
    • http://nessium.fr/userfiles/file/13624206654.pdfIn PDF document text
    • http://wxmx.cn/upload/ckimg/files/202110011100553693.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bf79887bea---wolasiresasanojijekozised.pdfIn PDF document text
    • http://regmac.net/userfiles/files/xulorulusegelizofokuse.pdfIn PDF document text
    • http://sirinthepgroup.com/userfiles/file/xinejubesalekadumixelas.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/95021323572.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141aded2ac04---nokusutirezexobude.pdfIn PDF document text
    • http://maychebiengoduykhuong.com/media/ftp/file/31549388824.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617f11626ea29---rapopurasasafasal.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/e6ace419b0c8c94a1963300586cac304/92483375530.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/gijogupefowob.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RhDyTiV0TgQ/uplcv?utm_term=fire+department+interview+questions+and+answersPDF link annotation
    • 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_off0000ddfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFD 10884 bytes
SHA-256: 856ba4a29f8ee1b706685925b64efba69bc00a6d4c5be3b14fa3a23bed0564f1
font_01_sfnt_off0000f6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F8 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off00010e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E19 17412 bytes
SHA-256: 032180d282a14e1e48dce0df9b932932ff6c0eddf0b97fd7a3c919039c098d22