Malicious PDF — malware analysis report

Static analysis result for SHA-256 191b6a3d8921456d…

MALICIOUS

PDF

72.7 KB Created: 2021-05-28 09:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 6bbba3db0c474b177e9ee1c145022c75 SHA-1: cf5cf606abefaa2ca26553964543c169b7c82c2c SHA-256: 191b6a3d8921456dc77d3e53dbc8da8428d0459abc6da17937314514d4c04e64
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://huntic.ru/uplcv?utm_term=automotive+air+conditioning+wiring+diagram+pdf PDF link annotation
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2dc68a07a---69977511747.pdfIn PDF document text
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/87dodf9du4q8552cnjid7sa016/74525502804.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad426cfc2a---43820388411.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa489053db---gamijebafibezubejarej.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965a14ea5aa---zirinitenokazonorawa.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/t94ucga5p215gkjpjjbvvncrk7/53907629878.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/bnrfgro0i02kbanee43s166kf3/pelutakatit.pdfIn PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b066bee9980---90360338435.pdfIn PDF document text
    • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/6fe306bed4d84ba51442c32bad359d68/fajisudulogagulodexibuk.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/91502009c7a2a66be49e28d1fbc9fb6e/sokewixuxujobakanerov.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/62098733351.pdfIn PDF document text
    • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/sg9orlb3t8j9mcb6qihocur0v1/1389372185.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1fccceca3---15940049594.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a43785043d0---39878751130.pdfIn PDF document text
    • http://dobrasekacka.cz/userfiles/file/85195308821.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16075caa8d38dc---fidapasu.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607226bf86e87---60644465792.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/1ac51eb8381fafc18ef583c2f613a23a/rosulomunanaweziviwi.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16087b9e7b1e79---fanojekitexuxubozow.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF72 5408 bytes
SHA-256: bae69c412b3cbe29b061724600e406a12ec8dc25f1009908c0508aad5387a001
font_01_sfnt_off0000f1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DA 10556 bytes
SHA-256: 6237658dad41fd75b92a97ed85ae9582a753661678ba911e7c1bcd15da887dd0