Malicious PDF — malware analysis report

Static analysis result for SHA-256 191c6b00c24549d6…

MALICIOUS

PDF

80.6 KB Created: 2022-04-07 18:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 8a2bc273427803028a4e4c3259496536 SHA-1: 45bc503d3d909201951576b180a4ba419a599ed2 SHA-256: 191c6b00c24549d6fed5dd3ec106fa57fdb756308ad26086a3bfe11703158da7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lazav.co.za/YmrXLWy8?keyword=ti%20nspire%20cx%20cas%20vs%20casio%20fx-cp400 PDF link annotation
    • https://komodovo.ru/upload_picture/82501934095.pdfIn PDF document text
    • https://pelusebilad.weebly.com/uploads/1/3/4/2/134234641/tutuput.pdfIn PDF document text
    • https://burojupudigi.weebly.com/uploads/1/3/5/9/135990051/3296980.pdfIn PDF document text
    • http://lex.tj/img/file/maxuturo.pdfIn PDF document text
    • https://bugomalaked.weebly.com/uploads/1/3/5/3/135324661/d969149c.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/162097f5d0117b---mudolutarudejopimevo.pdfIn PDF document text
    • http://www.tamar.org.br/fotos_news/files/livitamemowopusinunab.pdfIn PDF document text
    • https://zilexewutefak.weebly.com/uploads/1/3/4/6/134608169/5109373.pdfIn PDF document text
    • http://quincy.pl/ckfinder/userfiles/files/miritexetumebonulat.pdfIn PDF document text
    • https://rajepejejema.weebly.com/uploads/1/3/4/8/134860913/5745951.pdfIn PDF document text
    • https://dodanopo.weebly.com/uploads/1/3/1/4/131408738/7680879.pdfIn PDF document text
    • https://perokizeb.weebly.com/uploads/1/3/4/7/134764435/1002075.pdfIn PDF document text
    • https://zenojunaguj.weebly.com/uploads/1/3/4/6/134668508/padenopiguxeleta.pdfIn PDF document text
    • https://tofapugorod.weebly.com/uploads/1/3/4/8/134885187/rufemisupuwuzat.pdfIn PDF document text
    • https://zudesamuz.weebly.com/uploads/1/3/4/6/134689191/duwumadovufefi-pozejibegusik-tawokonifazar.pdfIn PDF document text
    • http://novehorizonty.sk/userfiles/file/30849666734.pdfIn PDF document text
    • https://autopits-directo.migrupoq.com/ckfinder/userfiles/files/81877118585.pdfIn PDF document text
    • https://turazuxutanuv.weebly.com/uploads/1/3/1/6/131606798/5c2f2fa3.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_off0000d7bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BF 17164 bytes
SHA-256: b426c5097136d83f80d5f4430be999f0d6825e5ecf4b60f0bd012c525855049b
font_01_sfnt_off000104c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD8 10696 bytes
SHA-256: 9af652db3dfff9205885b60c17f617b5029670a2adef9d766d41ac393266691a

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