Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7661b772b5e49a…

MALICIOUS

PDF

80.8 KB Created: 2021-11-04 13:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: fff6bb2792fc96146b3989eb6a42aeb2 SHA-1: 3ee6561178a99d1cb261ee65ebeb92e770314337 SHA-256: cd7661b772b5e49ae60f49e3b3390e28bfa12773d3821c6e34eee3964114908b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

Heuristics 5

  • 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 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 http://architettotoma.it/userfiles/files/mosekupotise.pdf In PDF document text
    • http://dui-antidote.com/images/userfiles/file/xuditufozamepufawoxunasu.pdfIn PDF document text
    • https://moyaexpresss.com/ckfinder/userfiles/files/wubonefijuzi.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/48646658788.pdfIn PDF document text
    • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/misimolokotabu.pdfIn PDF document text
    • http://live-net.it/file/jowunurenuvo.pdfIn PDF document text
    • https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/xenabigazeg.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16133f935bb13f---vifafuzogetefakadeva.pdfIn PDF document text
    • http://nct-vn.com/userfiles/file/xitosakekewebisedokefi.pdfIn PDF document text
    • http://ticaproduce.com/ckfinder/userfiles/files/lovotabofo.pdfIn PDF document text
    • https://xtrafitcoaching.com/www/images/files/seregiduzano.pdfIn PDF document text
    • http://summitremodelinginc.com/userfiles/files/61603362836.pdfIn PDF document text
    • http://seoaudytor.pl/userfiles/file/zabusoselofejezilevikunap.pdfIn PDF document text
    • http://www.kevimotor-rock.hu/files/files/22800063435.pdfIn PDF document text
    • https://terracell.pt/images/file/firerikurixodajoreb.pdfIn PDF document text
    • http://hyundaiokla.com/uploads/files/16232587852.pdfIn PDF document text
    • http://kutyasturak.hu/images/files/veperepizuxixapububotekef.pdfIn PDF document text
    • http://cdseoulps.com/uploadfile/fckeditor/file/xenave.pdfIn PDF document text
    • https://regaluxiluminacion.com/uploads/assets/file/mekikakos.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/c6c34e26b6fa097315d39e8b8f7bbd7e/63951336143.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/29063803860.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/7xhmvLXWVJc/uplcv?utm_term=all+first+person+pronounsPDF link annotation
    • 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_off0000d973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD973 17528 bytes
SHA-256: 0ab1e3a834c48e2fc7d509c7b6a13830d82e5f21d195d2bed5796b7fbe581298
font_01_sfnt_off000106e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106E6 10272 bytes
SHA-256: 05bc7e0c423fc64dee3524b14c537ccd201ac236879f8f6381c788a713ca4ed7
font_02_sfnt_off00011e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E21 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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