Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbede8e71a5581e9…

MALICIOUS

PDF

64.8 KB Created: 2022-05-31 13:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 57d017f7c4a6d268d814ce418c6674e8 SHA-1: 6eb0f1b714f2c8042a865336cee662869af62580 SHA-256: cbede8e71a5581e92735965d4f9370403b56344eb1bdac288f509c5e28f4c4a5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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://colod.co.za/YmrXLWy8?keyword=inequalities%20in%20one%20triangle%20worksheet%20pdf%20answer%20keys%20pdf PDF link annotation
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16231d388c0531---77105157883.pdfIn PDF document text
    • http://biemmecommerciale.eu/userfiles/files/korarekinojajan.pdfIn PDF document text
    • http://geomanteia.com/userfiles/files/joteduxis.pdfIn PDF document text
    • https://fazuzuxidugijef.weebly.com/uploads/1/3/4/4/134475184/8088358.pdfIn PDF document text
    • https://mamapesuwilataj.weebly.com/uploads/1/3/4/8/134857931/gurebuxipotevuzo.pdfIn PDF document text
    • https://tejajudiw.weebly.com/uploads/1/4/1/9/141999732/9fdaf19ae.pdfIn PDF document text
    • https://gewopisoxow.weebly.com/uploads/1/3/4/3/134306678/buwuseruditekuz.pdfIn PDF document text
    • http://pinturasoltra.com/images/slider/files/60079985377.pdfIn PDF document text
    • https://xuvidomukak.weebly.com/uploads/1/3/7/5/137503681/985f6aacea43.pdfIn PDF document text
    • http://someteme.es/archivos/_20220416095711.pdfIn PDF document text
    • https://ropaligezavizaf.weebly.com/uploads/1/3/5/9/135962070/4c0167d7947f5da.pdfIn PDF document text
    • https://gekibuvun.weebly.com/uploads/1/3/4/3/134354697/4620f2ab81339.pdfIn PDF document text
    • http://studioarchoggianiepartners.it/userfiles/files/soparugiritikajozidek.pdfIn PDF document text
    • https://infrapanel-alegjobbfutes.hu/userfiles/file/xezunitilukopajewor.pdfIn PDF document text
    • https://sakifawabepufa.weebly.com/uploads/1/3/4/4/134466371/kifivereguvu.pdfIn PDF document text
    • http://kovacsoltvaskerites.hu/images/file/55759477109.pdfIn PDF document text
    • https://fazinetogoxuv.weebly.com/uploads/1/3/5/3/135383047/5520312.pdfIn PDF document text
    • http://mientaytourist.com/uploads/files/sefipinitodefopoze.pdfIn PDF document text
    • https://zonisobeb.weebly.com/uploads/1/3/4/3/134333784/578973.pdfIn PDF document text
    • https://rhkapadia.org/Admin/plugins/kcfinder/upload/files/30756957287.pdfIn PDF document text
    • https://bupotovivo.weebly.com/uploads/1/3/3/9/133986694/6982745.pdfIn PDF document text
    • https://kojozenozifi.weebly.com/uploads/1/3/5/3/135315032/junapumolumenozuju.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_off00009a9a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00009a9a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009a9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A9A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000b2ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2AC 15872 bytes
SHA-256: 5b30dc5165c6c8701ab563123fdf0c0c8882d5faccc3143296f368d8cee8d11f
font_02_sfnt_off0000dba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA9 11268 bytes
SHA-256: 740a46e0d091c070751b8620f0b0f85db9f3f7a29347925dc2885624f792db19