Malicious PDF — malware analysis report

Static analysis result for SHA-256 47855534c8119009…

MALICIOUS

PDF

72.5 KB Created: 2021-10-21 08:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 4a439e99cca27d4cc4bd6325ce57d240 SHA-1: beb729a2a8a15f501d85fb318e3a6a5223ef99a1 SHA-256: 47855534c81190095a9d7125bdd456fff9ad6709e7e069fd54d1255552d9a603
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://inwebjor.ru/uplcv?utm_term=there%27s+is+nothing+holding+me+back+lyrics PDF link annotation
    • https://sfeerweter.nl/userfiles/files/lalipalaju.pdfIn PDF document text
    • https://pagodatalk.com/_UploadFile/Images/file/81891439582.pdfIn PDF document text
    • https://krossi.ru/images/content/files/66805310434.pdfIn PDF document text
    • http://wabasnb.com/files/fckeditor/file/4603382196153802f72935.pdfIn PDF document text
    • http://tianlanlawyer.com/filespath/files/20211003013027.pdfIn PDF document text
    • https://linlinline.biz/js/ckfinder/userfiles/files/89182034618.pdfIn PDF document text
    • http://polyacer-ecp.com/userfiles/files/20211011_075141.pdfIn PDF document text
    • https://eltonltd.ru/sites/default/files/uploads/74056063158.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1615cf66298cdf---8822286258.pdfIn PDF document text
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zinoka.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/84803112481.pdfIn PDF document text
    • https://dmitrovka-zn.ru/admin/ckfinder/userfiles/files/73856126569.pdfIn PDF document text
    • http://mercuresamuichaweng.com/admin/file/76627161817.pdfIn PDF document text
    • http://www.poliklinika-hb.cz/userfiles/file/sevobeson.pdfIn PDF document text
    • http://f-okinawa.com/img/tmp/files/7519221784.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1616957d4da4eb---15053109185.pdfIn PDF document text
    • http://captainkillmite.com/uploads/files/202109261556543073.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/seketelixiv.pdfIn PDF document text
    • http://kunbot.com/upload/files/narot.pdfIn PDF document text
    • http://gptools.net/userfiles/file/lazarelorilafeperifarawa.pdfIn PDF document text
    • http://coimbrasoftware.hu/images/uploads/files/tekidipadilero.pdfIn PDF document text
    • https://soudureornementalelauziere.com/upload/editor/file/zowinoka.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/6cdda1b5a7ac29fcf81a63829aff41a9/wajesatu.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4E 11160 bytes
SHA-256: 335e0db04cd3034b1a95d6b496246cfa7e345d0fa527c6fb5edef82c86e6d3b5
font_01_sfnt_off0000d513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD513 15316 bytes
SHA-256: cf60f3f887c468365b4119b14967de98cf04c5d73657e854ba45e793b51b2a40
font_02_sfnt_off0000fc64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC64 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1