Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c68cf56433d61e5…

MALICIOUS

PDF

80.7 KB Created: 2022-04-15 17:45:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 3996af0942f66c3a99bd59c1cf6db3e7 SHA-1: 6ae3e2715e5143792bb2f50235991031d89c2f13 SHA-256: 6c68cf56433d61e521b8ea13d39c351d72f2be9c2094e9707297282704a660ad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://sunuf.co.za/YmrXLWy8?keyword=commercial%20cool%20portable%20air%20conditioner%207000%20btu%20parts PDF link annotation
    • http://www.sindcomerciarioscs.org.br/adm/kcfinder/upload/files/luzadurorow.pdfIn PDF document text
    • https://lexenunisagofoj.weebly.com/uploads/1/3/2/6/132681921/2d9b5549e83e7.pdfIn PDF document text
    • https://hondamienbac.vn/userfiles/file/degevajajixisowadagokofi.pdfIn PDF document text
    • https://livubefelamujir.weebly.com/uploads/1/3/4/8/134899239/suvubojadaxogo.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/medoget.pdfIn PDF document text
    • https://gurekageta.weebly.com/uploads/1/3/2/6/132695257/6765c92a8.pdfIn PDF document text
    • https://gudaxukusakirip.weebly.com/uploads/1/3/4/0/134096244/c9a54f0.pdfIn PDF document text
    • https://barrierball.cl/ckfinder/userfiles/files/77286601446.pdfIn PDF document text
    • https://feravenokitaj.weebly.com/uploads/1/3/6/0/136095553/wuref.pdfIn PDF document text
    • https://xefimobabizigur.weebly.com/uploads/1/3/1/6/131637686/kemagiriv_wupog.pdfIn PDF document text
    • https://pukexomupuko.weebly.com/uploads/1/3/1/1/131164185/dekuk.pdfIn PDF document text
    • http://hockjoohin.com/admin/uploads/file/68205890368.pdfIn PDF document text
    • http://kbchina.de/upload/11212275362.pdfIn PDF document text
    • https://mojurakikaluno.weebly.com/uploads/1/3/1/4/131438245/muvuwoposudema.pdfIn PDF document text
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16242adcf1ddcc---jikosaxugoforavugure.pdfIn PDF document text
    • https://toxoxazagole.weebly.com/uploads/1/3/0/9/130969938/117557a29a.pdfIn PDF document text
    • http://zoltysnieg.pl/pliki_wyswig/files/zipoxuresuvirubekupudes.pdfIn PDF document text
    • https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/22023389747.pdfIn PDF document text
    • http://realestatespoznan.com/uploads/56241161059.pdfIn PDF document text
    • https://siwurarililoto.weebly.com/uploads/1/3/1/4/131453181/0311f62.pdfIn PDF document text
    • https://www.yamanosake.com/js/kcfinder/upload/files/fanajabixaxon.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_off0000d4b2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d4b2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B2 17544 bytes
SHA-256: 75a03ef8d98e746a6e1be2a6c791d8eed47251540916693fcc42435897ebf0b8
font_01_sfnt_off0001029e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029E 11120 bytes
SHA-256: e92a0964ca7634a26dadec309cd769f3692e22f2f623dab19c5f4893c6d713b7
font_02_sfnt_off00011c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C5B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1