Malicious PDF — malware analysis report

Static analysis result for SHA-256 7936ef3402d543ff…

MALICIOUS

PDF

89.0 KB Created: 2021-09-03 16:24:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 8ab02100eea52f9e4fa09222678d65d5 SHA-1: c640de60566e44a70da020690d6df5a563dc4d7f SHA-256: 7936ef3402d543ffd9930af11cc158dfcc6aee44e3098ee2e8b0f09f636eea51
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/f4db3dc4ec4a7ac45d3d0c53471f7c7e/wumetiwesutubevexexe.pdf In PDF document text
    • http://svatba-emi.com/uploads/pages/files/74814606167.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/fd59c270f94ea6dfe2cafc751a374d4f/64290830001.pdfIn PDF document text
    • https://journeywithmypet.com/ckfinder/userfiles/files/fedukefevegapu.pdfIn PDF document text
    • https://aglogistics-bo.net/userfiles/file/wovapekefuzalerujiwefa.pdfIn PDF document text
    • https://asiahijau.com/contents//files/56679894148.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b7eec765624---27174230790.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fed6abd05---jodelezejivip.pdfIn PDF document text
    • http://currycornersugarland.com/admin/images/file/vekesoxese.pdfIn PDF document text
    • http://maternites-catholiques.org/ressource/site-image/files/romezuguge.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8bff740a39f39b4758ed9bb8becb5b04/75962483880.pdfIn PDF document text
    • https://nasroglobal.com/userfiles/file/xalefit.pdfIn PDF document text
    • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/617619f3dc55ebbab51bed6a77e8f036/71759605797.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609b853856f71---90570048268.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607454c0b555e---mekutujagire.pdfIn PDF document text
    • http://markasib.ru/ckfinder/userfiles/files/seladikanekes.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/304c7d91f205c6bf4b891f962f6be313/zidigoxazanomebadoka.pdfIn PDF document text
    • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/210f583fb2f70b63d24537ab3869fdcb/66690440684.pdfIn PDF document text
    • https://foundryindia.org/userfiles/file/87666662714.pdfIn PDF document text
    • http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/muvesuko.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/fd1vgel5l6aa1loaapk5aqnu5hcmav57/78097633645.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2adf6cf2b3---98011844305.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/eef3392ea0c8db045d85e6fb004469da/49086933867.pdfIn PDF document text
    • http://shanghaiqingchen.com/upload/files/10171172322.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=difference+between+self+inductance+and+mutual+inductance+pdfPDF 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_off0000f85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF85A 10988 bytes
SHA-256: f7a0d3667d14a576569cf8df3129b8c8a09e48ce008cf16dae5760188f21eba6
font_01_sfnt_off000111ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111BA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000129cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129CC 16904 bytes
SHA-256: 9b9f6f21f0fa8b2352afd8931dc2534df360cfe216eeea45599006e10f51aa14