Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5db6acd97921825…

MALICIOUS

PDF

76.2 KB Created: 2021-06-20 09:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 0596e81bc2746aaffa99974341c47cb3 SHA-1: bcd1e16f784f9ddda09b3d4ae50bb7a8d5168586 SHA-256: c5db6acd979218253d422107bbfcbc914d383c2596f9c2942cf600f636547c5d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 https://chcial.ru/uplcv?utm_term=online+xnxx+proxy PDF link annotation
    • http://polletnv.be/uploads/files/dipuxibepapotegozojudireg.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/xuruvatipadov.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad0bf3428b7---85095484720.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160851e3cb2772---vozisalozegimotuweniwosex.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b7ce950a5---42010027886.pdfIn PDF document text
    • http://dellalontra.it/userfiles/files/tajalogamanifuvu.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/gemumuluwov.pdfIn PDF document text
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/5g4k9soronviqocfgde6qh71ro/povakigepigavo.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160bf8ae408979---50505359092.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/67376560a16cbb12565207487d78b5c0/xurelimisemexeduxegalil.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/febf122b6310e0d03ef98195fcc9b42d/bemazagij.pdfIn PDF document text
    • https://energooptima.hu/upload/File/gigubidevidi.pdfIn PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/zivetetanegezus.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c46baae4ae3---zuxoguguputolapiguti.pdfIn PDF document text
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acdfa5cb55c---riras.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/mgak3jkug51ul7bau2kb8976cm/kivamipokov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn 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_off0000d942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD942 4620 bytes
SHA-256: d193b58e3963ea3660d66eec79b74c950806aaf22eb3484ad994514ff6740004
font_01_sfnt_off0000e915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE915 10932 bytes
SHA-256: 0afc5952af623eea2b2517020e2a60c36cc10b3cc721d197fdacd2e30775ae1c
font_02_sfnt_off00010ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA7 16148 bytes
SHA-256: dbe1f6873dfbc63a557840fa26764ed1e24daf10180a919a5f50e881975b6f06