Malicious PDF — malware analysis report

Static analysis result for SHA-256 847ace4428e73a4f…

MALICIOUS

PDF

76.7 KB Created: 2022-04-05 20:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 7bd7b963172744e5bbc239ada7817a27 SHA-1: dcbf1475466733f89310f8834088e5072c743251 SHA-256: 847ace4428e73a4f54b29a75a6d10e555c13ad541e44bac6b0c6cae8a2be070b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://lazav.co.za/YmrXLWy8?keyword=legend%20marie%20lu%20comic%20pdf PDF link annotation
    • http://geometracosentino.com/userfiles/files/89992036823.pdfIn PDF document text
    • https://pisukobuvasojab.weebly.com/uploads/1/3/4/3/134398412/714838.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622c60c55f5c9---13780009083.pdfIn PDF document text
    • https://bk.elbasyacademy.kz/vendor/admin/kcfinder/upload/files/jidenarupexigezazupo.pdfIn PDF document text
    • https://tagufonatudivar.weebly.com/uploads/1/3/4/6/134609106/5c3f6962.pdfIn PDF document text
    • https://reko-print.cz/files/ckfiles/file/98476247794.pdfIn PDF document text
    • https://gunesakozi.weebly.com/uploads/1/3/0/9/130968934/jezeruw.pdfIn PDF document text
    • http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210a5cdee1b5---83536900989.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/17387420903.pdfIn PDF document text
    • http://radiofarsasch.online/upload/files/66206228591.pdfIn PDF document text
    • http://bhhangkhong.com/upload/images/files/surunalugepuvav.pdfIn PDF document text
    • http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/96323301797.pdfIn PDF document text
    • https://kimiragijasem.weebly.com/uploads/1/3/4/0/134096233/xawipifutopo.pdfIn PDF document text
    • http://www.prodomasa.com/ckfinder/userfiles/files/86031626583.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/6152497671fb3e76ea5c3cf041910438/67276576847.pdfIn PDF document text
    • https://melozepopi.weebly.com/uploads/1/3/0/7/130775643/nivufig.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1623b093e55641---gosebetazavi.pdfIn PDF document text
    • http://anaminfo.com/attachfile/file/memegu.pdfIn PDF document text
    • http://mynigaoe.com/upload/file/20220324152606.pdfIn PDF document text
    • http://kco.su/userfiles/file/xizazipunavemalokijaj.pdfIn PDF document text
    • http://hongdanhaudio.com/luutru/files/lavidofajedupaduzomu.pdfIn PDF document text
    • https://xinomufe.weebly.com/uploads/1/3/4/7/134706409/25bd66.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.netIn extracted file (font_00_sfnt_off0000c5b0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5b0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B0 10752 bytes
SHA-256: 31e7bfc2fda43227013fa2e20b01abff0ad713ca9ce7c575fc4a4c560aedd601
font_01_sfnt_off0000de11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE11 17348 bytes
SHA-256: 927278a16960d56baaf07930fda6922728a5b7eb387b2f3c7a2730fe783f0b7e
font_02_sfnt_off00010b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B63 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1