Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc3edfc75afeb33…

MALICIOUS

PDF

119.6 KB Created: 2022-06-01 12:43:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-02
MD5: 33aab1611435429243a208167f524744 SHA-1: aa50f258398dacd4a157beb79406783ef6f7f152 SHA-256: bcc3edfc75afeb3350f6854d9f5f1e44ea873099adffbfd227a14d80de3eb515
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://mifuj.co.za/YmrXLWy8?keyword=hach%20dr%203900%20test%20procedures%20manual%20part PDF link annotation
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16275a9dd6716a---luvitapufa.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/2d98939b0.pdfIn PDF document text
    • https://xuxanowas.weebly.com/uploads/1/4/1/3/141331169/9248669.pdfIn PDF document text
    • https://ridadopabesad.weebly.com/uploads/1/4/1/3/141341444/boxenanem-fagaz.pdfIn PDF document text
    • https://gatilavim.weebly.com/uploads/1/3/4/3/134391542/ronuwot.pdfIn PDF document text
    • https://tumulole.weebly.com/uploads/1/3/6/0/136054957/jerolufisedi_fidogozijirere_wapegivik.pdfIn PDF document text
    • https://zexixenutokegi.weebly.com/uploads/1/4/1/3/141318365/xofuxexegiwokox.pdfIn PDF document text
    • http://czpohledavky.cz/userfiles/files/35037337331.pdfIn PDF document text
    • https://webkapper.nl/ckfinder/userfiles/files/86435156327.pdfIn PDF document text
    • http://vinabomi.com/uploads/userfiles/file/66049978748.pdfIn PDF document text
    • https://nadezawopituwij.weebly.com/uploads/1/3/4/6/134643068/rupekoduf.pdfIn PDF document text
    • http://suamanhinhlcd.net/userfiles/file/meboxifodewizena.pdfIn PDF document text
    • http://markone-tools.com/upload/files/81602609929.pdfIn PDF document text
    • https://homestayhoian.vn/uploads/image/files/nasuxufi.pdfIn PDF document text
    • http://russkayabronza.com/userfiles/file/punusax.pdfIn PDF document text
    • https://bumufufumobumag.weebly.com/uploads/1/3/2/8/132815806/wudukegoleriwok.pdfIn PDF document text
    • http://4226080.kad.tw/kads/ckfinder/userfiles/files/57885028656.pdfIn PDF document text
    • https://ranuxibat.weebly.com/uploads/1/3/4/5/134595997/wilepakopobegowaral.pdfIn PDF document text
    • https://walagikolisof.weebly.com/uploads/1/3/4/4/134494282/6240e09ee59e.pdfIn PDF document text
    • http://studiotecnicoligioni.com/userfiles/files/39052191810.pdfIn PDF document text
    • https://weguzusoxid.weebly.com/uploads/1/4/1/7/141794065/e1dea.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 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_off00016dba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DBA 18444 bytes
SHA-256: 202f55919628e1b51da55d7169c2179d9f38b007365851c586891b1505705e70
font_01_sfnt_off00019e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19E5B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001b672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B672 11240 bytes
SHA-256: e8ba8a8929d25da1816aff1a3002a12e6d50bfef76bb4a72a222e369318caf14