Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbed65aa51391b9c…

MALICIOUS

PDF

75.6 KB Created: 2022-04-07 10:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 0d44292a757b0b87e550384775d8f21e SHA-1: 3b6968f31e2bbf2e0cfc64910fd95a030bf00d4c SHA-256: cbed65aa51391b9c69b400ee1204061f9a24ea81d7be0852b46fd0bf257e8c88
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lovig.co.za/YmrXLWy8?keyword=hp%20officejet%20pro%20l7590%20ink%20expired PDF link annotation
    • https://tewubituzidebu.weebly.com/uploads/1/3/4/3/134359488/migakaxo.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624dac18e6990---fotolutenowavaroxe.pdfIn PDF document text
    • https://lanulizuxuja.weebly.com/uploads/1/3/4/6/134658029/9318487.pdfIn PDF document text
    • https://regapopuro.weebly.com/uploads/1/3/5/9/135964604/506472.pdfIn PDF document text
    • http://asupuro.com/upload/save_image/files/33543157881.pdfIn PDF document text
    • https://nuzopotox.weebly.com/uploads/1/3/4/4/134497293/3112790.pdfIn PDF document text
    • https://jebelobuf.weebly.com/uploads/1/3/1/4/131452997/wusovaxas.pdfIn PDF document text
    • http://cariboohose.com/userfiles/file/suxitiretot.pdfIn PDF document text
    • http://valburysekuritas.co.id/upload/files/95020102573.pdfIn PDF document text
    • https://sibojigejediwij.weebly.com/uploads/1/3/4/6/134606131/9765788.pdfIn PDF document text
    • https://vifesomojijafi.weebly.com/uploads/1/3/4/3/134337648/280f6cc9.pdfIn PDF document text
    • https://subhagataguesthouse.com/userfiles/file/39331192938.pdfIn PDF document text
    • https://lijotabele.weebly.com/uploads/1/3/4/0/134016876/2079520.pdfIn PDF document text
    • http://dobrasekacka.cz/userfiles/file/99141823290.pdfIn PDF document text
    • http://valk.dn.ua/js/kcfinder/upload/files/92604814298.pdfIn PDF document text
    • https://nazuvunu.weebly.com/uploads/1/3/4/4/134438845/5206511.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_off0000c2cd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c2cd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2CD 17020 bytes
SHA-256: 553f68b0dda9ceaebd7d04976905409fa23c477701d0e0b568ca7cd870514e44
font_01_sfnt_off0000ef56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF56 11072 bytes
SHA-256: ed95878510e331627bfd7f5517302297181425e7a46f4327965795cd1f68e39c
font_02_sfnt_off00010939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10939 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1