Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5d7304f90c6e2…

MALICIOUS

PDF

83.9 KB Created: 2022-04-18 03:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a143859f998136e30def41d281987739 SHA-1: f461beaaecc5ebeeee6940c897df6c9975313914 SHA-256: 72b5d7304f90c6e2211a4fb8203b2bbbb2e137b4879077977a4e5be683d6906e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 https://podar.co.za/YmrXLWy8?keyword=como%20aprender%20a%20tocar%20guitarra%20clasica%20para%20principiantes PDF link annotation
    • http://amst-cn.com/userfiles/file///42679594867.pdfIn PDF document text
    • http://imssp.by/data/images/fxeditor/file/lujukulirakifunagof.pdfIn PDF document text
    • http://vamaconsulting.sk/userfiles/file/41124246082.pdfIn PDF document text
    • http://corising.info/sa_upload/userfiles/file/20220221125809.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/90185484705.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/5f01aa7b36a2e82506c03fc57b27e3ef/49004842799.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/60243489741.pdfIn PDF document text
    • https://bipufufutugudov.weebly.com/uploads/1/3/1/1/131164095/vunubub-kowibuvibo-votan.pdfIn PDF document text
    • http://interroadholland.nl/userfiles/file/31430722377.pdfIn PDF document text
    • https://pagesoduniti.weebly.com/uploads/1/4/1/4/141409360/09501001.pdfIn PDF document text
    • https://mph.cz/upload/files/damixobozujadexoterumat.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622458d7af8b2---vubewukepunufefi.pdfIn PDF document text
    • https://autoteam.in/ckfinder/userfiles/files/10836928563.pdfIn PDF document text
    • https://pontus-sd.eu/uploads/file/28958124684.pdfIn PDF document text
    • http://dmychadla.eu/UserFiles/File/sebewav.pdfIn PDF document text
    • https://edftrans.serwiskonsularny.pl/images_user/file/86200730805.pdfIn PDF document text
    • http://pinboulevard.com/file_space/files/lidusulizexizazukekaw.pdfIn PDF document text
    • http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/lujekifaweged.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_off0000e1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A8 18116 bytes
SHA-256: 6dd238ccfc09a044de78bf3b6b7b505e583ac56972351bed272e1f36feec0b61
font_01_sfnt_off00010ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF6 10988 bytes
SHA-256: 5ef02c4aa7985295734c96c64e5beef5d28b33ed20a919fdacf5684c90be5cac
font_02_sfnt_off00012942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12942 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1