Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e63de01309448a…

MALICIOUS

PDF

81.9 KB Created: 2021-09-08 13:01:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 7933c0dab46ad9946aa243f424ee049e SHA-1: b0ec73779344ab68d44b5d771ca251a56ad12006 SHA-256: d3e63de01309448ad3eb5d7307f1e1ed5a110565fd1e103b275cf0e14fba33f8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2caa4ff87---zivimopoxusezati.pdf In PDF document text
    • http://aktifbant.com/resimler/files/47506053868.pdfIn PDF document text
    • http://keyday.ru/files/files/ribojakerek.pdfIn PDF document text
    • http://kemenyseprosiklos.hu/upload/file/mazataxaxawep.pdfIn PDF document text
    • http://test-immo.com/file/bewobelerelawamegakum.pdfIn PDF document text
    • http://alarm.pl/userfiles/file/28987584070.pdfIn PDF document text
    • http://abwhopewell.com/uploads/files/56322350598.pdfIn PDF document text
    • http://www.injamal.es/nueva/ckfinder/userfiles/files/pekegofikeg.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/25069893038.pdfIn PDF document text
    • http://bkmarine.net/ckfinder/userfiles/files/1631076277.pdfIn PDF document text
    • http://huarui-bio.com/upload/files/68255598457.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/c9b1e7bea4c8ac0786768ea19bc04f10/57421025432.pdfIn PDF document text
    • http://kimhoatra.com/upload/fckimagesfile/15734866863.pdfIn PDF document text
    • http://xn--80aer5aza.xn---42-5cdakyymnnb9ake1az.xn--p1ai/ckfinder/userfiles/files/walewa.pdfIn PDF document text
    • https://spirit-legend-enterprises.com/webroot/editor-uploads/files/pifodaku.pdfIn PDF document text
    • https://www.edm-medical.net/ckfinder/userfiles/files/22309999661.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613215fbe9887---56735792512.pdfIn PDF document text
    • http://sb-78.ru/files/file/netige.pdfIn PDF document text
    • https://namdolove.com/FileData/ckfinder/files/20210903_8404342E37B71DF6.pdfIn PDF document text
    • http://botaierpharm.com/upload/files/lerokib.pdfIn PDF document text
    • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/7622496003.pdfIn PDF document text
    • http://steelfurniturecn.com/d/files/jiked.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16132a0b0a5259---vurojowejalonemubu.pdfIn PDF document text
    • http://hoteldazegliotorino.com/userfiles/files/vebuwojafexili.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=prurigo+estr%C3%B3fulo+pdfPDF 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_off0000d332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD332 20740 bytes
SHA-256: 0d5952a2d0993c32a1aaef74cfac4a2038b2fbde73bb2360532a6e021813e684
font_01_sfnt_off000109b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000121c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C9 10648 bytes
SHA-256: 7f20df24507d530d5d740e2782d166b569029a1bf3a2f25943fb312a73d854ab