Malicious PDF — malware analysis report

Static analysis result for SHA-256 191a574efb22b4d6…

MALICIOUS

PDF

73.8 KB Created: 2022-04-06 12:54:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 5a82b7af061c2cfa990b3e2144c9cc03 SHA-1: 0a7b45a293856bfe79f043483b06544a9aeb74aa SHA-256: 191a574efb22b4d6334c19579a80fbe973bf72c9d92f7a26eec2b5da5149f8f1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=what%20is%20the%20order%20of%20the%20books%20in%20the%20left%20behind%20series PDF link annotation
    • https://zikawudewodag.weebly.com/uploads/1/3/4/5/134585044/716c579ea1.pdfIn PDF document text
    • https://wodarobasuk.weebly.com/uploads/1/3/5/3/135300597/dururanuwo-sinilibosutebom-gediliremuge.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/44738987056.pdfIn PDF document text
    • https://jinezosibe.weebly.com/uploads/1/3/4/4/134454760/ridit.pdfIn PDF document text
    • https://lufurazorume.weebly.com/uploads/1/3/0/8/130874109/dc1c158aa5.pdfIn PDF document text
    • http://vansuloi.com/uploads/userfiles/file/55086458484.pdfIn PDF document text
    • https://fazafunapogaz.weebly.com/uploads/1/3/4/1/134131986/2fb9cada5c.pdfIn PDF document text
    • https://pulivaxudifosaj.weebly.com/uploads/1/3/4/2/134235984/62b4f12d24c2a.pdfIn PDF document text
    • http://genevacars.ru/public/file/rululapukijuk.pdfIn PDF document text
    • https://nimimemuxigu.weebly.com/uploads/1/3/4/4/134488465/9854504516ecc.pdfIn PDF document text
    • https://mail.conepe.org.br/public/ckeditor/kcfinder/upload/files/10097499397.pdfIn PDF document text
    • https://somogyplusz.hu/files/ziwibaderusimibadejo.pdfIn PDF document text
    • https://fegedagupadid.weebly.com/uploads/1/3/1/8/131856554/1788634.pdfIn PDF document text
    • https://giwaxevo.weebly.com/uploads/1/3/4/6/134644090/ccd25.pdfIn PDF document text
    • https://kaferafodi.weebly.com/uploads/1/3/0/7/130775544/f1e16d0d242814e.pdfIn PDF document text
    • https://puxupukesif.weebly.com/uploads/1/3/0/8/130813524/bavuzewofozik_sebinegal.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16208aa192dccc---85065103165.pdfIn PDF document text
    • http://myflora888.com/ck_files/files/1120156903.pdfIn PDF document text
    • https://xuxizubewida.weebly.com/uploads/1/3/4/5/134505251/rafokoweriwubam.pdfIn PDF document text
    • https://wopusuxosar.weebly.com/uploads/1/3/4/5/134583764/sepukazarinizupem.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_off0000bc03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC03 10676 bytes
SHA-256: 995063e8967e3f26b611fa17291628f047108467926f46e12cacc5465cbc8977
font_01_sfnt_off0000d46b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46B 16404 bytes
SHA-256: 9aef1fed69ee706b8b34f142b816fd3783fb9d3c36bdf031659968cbb8127dc4
font_02_sfnt_off0000ff09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF09 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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