Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda5fdc74913de8…

MALICIOUS

PDF

75.7 KB Created: 2021-12-12 03:51:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: f3fd25cfc7c57080c4d90053089d3a08 SHA-1: 6d9a9ce5c5fd2c3caf990e33d55232caa0a1813b SHA-256: 3dda5fdc74913de89fb6766e9144d11e1a1b53d26fc9699c046c53f0c6533278
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://ehomeforeclosure.org/images/file/1988544406.pdf In PDF document text
    • http://netichikawaya.com/userfiles/file/69598790814.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/15228093735.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/xexejevivaxemufurirutemo.pdfIn PDF document text
    • http://projecthouse.bg/uploads/CKfinder/files/93466640755.pdfIn PDF document text
    • http://harlit.com/ckfinder/userfiles/files/20211120_212347.pdfIn PDF document text
    • http://df-2.de/images/daten/file/bixenenalisomutafowiwora.pdfIn PDF document text
    • http://greenplanetnepal.com/userfiles/file/46268165590.pdfIn PDF document text
    • http://konikanarrowfab.com/ckfinder/userfiles/files/xigulamopufepovefobajeba.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/4v5niaarqsqu2f21v4fib6smm6/purutofisugu.pdfIn PDF document text
    • http://neonatal-surgery.ru/userfiles/files/surus.pdfIn PDF document text
    • http://danies.ru/ckfinder/userfiles/files/43081180724.pdfIn PDF document text
    • http://freeorden.com/media/file/fevoja.pdfIn PDF document text
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/suvibiduratew.pdfIn PDF document text
    • https://kemxoithanhhang.vn/app/webroot/files/images/pages/files/90396057018.pdfIn PDF document text
    • http://www.waetsukai.jp/system/ckfinder/userfiles/files/raparorox.pdfIn PDF document text
    • https://bukkosdiskola.hu/files/file/tojevibomopofe.pdfIn PDF document text
    • https://www.almuhja.com/ckfinder/userfiles/files/61071239104.pdfIn PDF document text
    • http://noticiascgnews.com.br/ckfinder/userfiles/files/mefudefifobopol.pdfIn PDF document text
    • http://soles2walk.com/data/file/39715923691.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613eca3bb5aef---wulox.pdfIn PDF document text
    • https://phm.vn/upload/files/sipupenazefigekuxinor.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/b05f20cc283354ac4c9c3d5475ac3bcc/wokuvi.pdfIn PDF document text
    • https://biorenta.lt/ckfinder/userfiles/files/rajudepa.pdfIn PDF document text
    • http://elcivan.com/admin/UserFiles/file/38959956920.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=2500+dollars+in+1960+to+nowPDF 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_off0000bde4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE4 10864 bytes
SHA-256: badeccb39b936d85855ce6396665cf581d11fe48b00cf23808b83c1396e02fec
font_01_sfnt_off0000d726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD726 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000edc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC5 19588 bytes
SHA-256: dcc2ecb928bf1aa046bbd9468e3f740097546b2718ea170a85990f9e968109e3