Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8272fc466c7255…

MALICIOUS

PDF

85.8 KB Created: 2021-09-18 05:49:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: d8de66e44b38da7b7fcab32f7429a8ac SHA-1: 30b49bf6a5b2763042da9fc12c8a224064a6b35b SHA-256: 5d8272fc466c725556f324d2db61775a54d7b61f36ad6fffe13aa64009b30172
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PHP webshell / backdoor source critical WEBSHELL_PHP
    The file contains PHP server-side code with the signature of a webshell/backdoor (named PHP webshell banner (madspot)). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
  • 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://strategie-forex.com/ckfinder/userfiles/files/59053384469.pdf In PDF document text
    • https://festival-bg.com/media/ckuploads/files/bigunapafirilu.pdfIn PDF document text
    • https://rzfmuhasebe.com/userfiles/file/25067663206.pdfIn PDF document text
    • https://jamurgoreng.net/contents/files/zusanifepafaxiwew.pdfIn PDF document text
    • https://projetounificado.com/uploads/files/sokukuzusoximuzoti.pdfIn PDF document text
    • https://whitepalacegrill.com/userfiles/25941871720.pdfIn PDF document text
    • https://hogozaty.com/ckfinder/userfiles/files/30963095482.pdfIn PDF document text
    • http://laboratoriologos.it/userfiles/files/92595110523.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161404842811ba---2413099552.pdfIn PDF document text
    • https://mytekas.com/UserFiles/file/98849199119.pdfIn PDF document text
    • http://sola-brothers.com/userfiles/file/14820745282.pdfIn PDF document text
    • http://flapboxes.custompackageboxes.com/userfiles/files/28309412927.pdfIn PDF document text
    • http://daearesort.com/FileData/ckfinder/files/20210913_DC0280530A806C5B.pdfIn PDF document text
    • http://getsolarny.com/userfiles/file/48263955383.pdfIn PDF document text
    • http://ebiocell.com/uploadfile/file///2021090515021197.pdfIn PDF document text
    • https://www.servicespace.org/inc/ckfinder/userfiles/files/nomafipejibo.pdfIn PDF document text
    • http://studioagronomoserragiotto.eu/userfiles/files/nulabatutiwuvirekogo.pdfIn PDF document text
    • http://ranjitabiswas.com/userfiles/files/71214713844.pdfIn PDF document text
    • https://cristalparkhotel.com/ckfinder/userfiles/files/89519201877.pdfIn PDF document text
    • http://edallyshop.com/upload/files/delefusikexog.pdfIn PDF document text
    • https://madspot.dk/ckfinder/userfiles/files/93538762778.pdfIn PDF document text
    • http://ledlight-lamp.com/mingyi/images/userfiles/file/muxozopegikasan.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=james+bond+novels+pdfPDF link annotation
    • https://tes-sys.com/uploads/ckfinder/files/20210907/16309757079281.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_off0000eaf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF9 10564 bytes
SHA-256: 9e7687fff863d7f674a677c2f1a691d884b1450ba92af2cc6e9d0034aa4a203a
font_01_sfnt_off000102db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102DB 18144 bytes
SHA-256: 5cfa0ae5a0a201b2b1d1dc9a3b16d21d3096ae3a019ae4bd5ffa6f1e43dd3a17
font_02_sfnt_off000131f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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