Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc6b5a7a7946c17…

MALICIOUS

PDF

77.7 KB Created: 2022-04-20 11:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: ae880c6e8c5515f00426d8d88d89d80b SHA-1: 460e4fa82f6aa72ddba547ce8b1e1d1b81e841ba SHA-256: 3bc6b5a7a7946c17a422d240b9aeb87780c21e048b51bf025dce3c52af93994f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://wirut.co.za/YmrXLWy8?keyword=how%20to%20change%20honeywell%20filter PDF link annotation
    • https://skl.deindrukdemo.nl/upload/files/78069902953.pdfIn PDF document text
    • https://fozoxusesabe.weebly.com/uploads/1/3/4/7/134748975/3393078.pdfIn PDF document text
    • https://kovakaxidaxid.weebly.com/uploads/1/3/5/3/135322813/muxudexixumod.pdfIn PDF document text
    • http://controldellaves.com/app/webroot/arxius/file/xoxafoluvotonolonilefutum.pdfIn PDF document text
    • https://nitevugumosu.weebly.com/uploads/1/3/4/5/134526644/6221220.pdfIn PDF document text
    • http://zetrade.cz/userfiles/file/98543404722.pdfIn PDF document text
    • https://www.edmcenter.xyz/ckfinder/userfiles/files/73612438170.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bvu/20220323/file/92885365311.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/60705476190.pdfIn PDF document text
    • https://defavelusanopef.weebly.com/uploads/1/3/5/3/135345674/6952197.pdfIn PDF document text
    • https://radaxarazeda.weebly.com/uploads/1/4/1/3/141370674/piloz-fenosabute-vizojoramuxeb.pdfIn PDF document text
    • https://basisangka.com/contents/files/31624954220.pdfIn PDF document text
    • https://rigumiwetine.weebly.com/uploads/1/4/1/3/141351510/gawetexunevawo_fufijesajebek.pdfIn PDF document text
    • https://lefutolemisu.weebly.com/uploads/1/3/4/7/134711730/valabet.pdfIn PDF document text
    • https://wirimodarezekas.weebly.com/uploads/1/3/5/3/135314182/c998879.pdfIn PDF document text
    • https://koduvujorolud.weebly.com/uploads/1/4/1/3/141352505/kizogatafodapej_kadumotu.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/mopajebewigofazo.pdfIn PDF document text
    • http://ypdtools.com/ckfinder/images_store/files/1549818810.pdfIn PDF document text
    • https://seerupit.dk/assens/file/81144299675.pdfIn PDF document text
    • https://pmrmhss.com/userfiles/file/mujakexigekotelulosufum.pdfIn PDF document text
    • https://liletalezawo.weebly.com/uploads/1/3/4/5/134591830/biluziduf-gokabusu-wegekituzef-rupegogawukikup.pdfIn PDF document text
    • https://kidofepakanuzok.weebly.com/uploads/1/3/4/0/134096393/tovominop.pdfIn PDF document text
    • https://tadizape.weebly.com/uploads/1/3/1/6/131637484/4328726.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_off0000c862.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c862.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC862 17648 bytes
SHA-256: 9ae612adce4979a156a4beea42a9e31108a8b82788185cc38ac2842e25ee5709
font_01_sfnt_off0000f700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF700 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010f17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F17 10636 bytes
SHA-256: a40bf4dccde8573085f093669f2953578b65beb02839568a2e114248839c61ec