Malicious PDF — malware analysis report

Static analysis result for SHA-256 478f7c801f5faa4a…

MALICIOUS

PDF

82.2 KB Created: 2021-08-20 03:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 2e3f9e50551b87cfc054165fe6cce039 SHA-1: 96c26d5f721b1c4a28d5e7141f65df955382e497 SHA-256: 478f7c801f5faa4a6ba9bdc6f40da391a2d190bdee2cff616fb25d3f4e4ef55e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://rexant.by/upload/editor/files/23554142691.pdf In PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160815f4e91df1---tijazurozufodaxuxital.pdfIn PDF document text
    • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16089e300753e0---kamodumisukujosabatimun.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/1961689633.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/nejozoteki.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/36cebe92ec1c9487426d086c68b9105c/nuruveka.pdfIn PDF document text
    • http://kayapaliinsaat.net/file/18376225872.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfd53a990ea---xewajezorufipujofa.pdfIn PDF document text
    • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/cd44847ea51f7095322721e18422eeb0/30181773026.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/09ad439b9be20dcf6716155149e13639/wixituzumupegewiw.pdfIn PDF document text
    • https://www.notusweb.com.br/ckeditor/ckfinder/userfiles/files/zigovaxo.pdfIn PDF document text
    • http://xboxheerlen.nl/userfiles/file/13723911860.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/gewosewixamoben.pdfIn PDF document text
    • http://quiltingacademy.com/fckeditor/userfiles/file/29263750078.pdfIn PDF document text
    • https://www.fangjin.org/ckfinder/userfiles/files/duduvozifosi.pdfIn PDF document text
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/d5e0a8d206b23012df3af079885678e4/musofedive.pdfIn PDF document text
    • http://creativetechno.in/userfiles/file/18706824627.pdfIn PDF document text
    • http://cattaneoarchitetti.it/userfiles/files/41781767912.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086dda639397---81514238973.pdfIn PDF document text
    • http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/godurosed.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609f106a72631---66745932430.pdfIn PDF document text
    • https://hoanghaie.com/Images_upload/files/fakuz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=home+network+installation+services+near+mePDF 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_off0000dfa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA3 16684 bytes
SHA-256: 62ae4f4e00a4696241b0fae847a6086d985f3933cfd8f48a6812beb5ae5fc962
font_01_sfnt_off00010b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B48 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001235f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1235F 10624 bytes
SHA-256: ec70bc812731e5e8f3a4ebec5fb57e0b8512a2319dfb9f0d6fbf1bba086d14fc