Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4ff06696894e894…

MALICIOUS

PDF

89.2 KB Created: 2021-09-09 16:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: c27e81b59a0ad4ea9a307f05f135c494 SHA-1: 4c635ff30a1b58268efbdba69cd5173ba37ab543 SHA-256: a4ff06696894e8946ee0c2c43af8ed9a57125f24e32c79a48cef3507a6fbdb66
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://itineraire-consulting.com/ckfinder/userfiles/files/73550945902.pdf In PDF document text
    • http://thietbiytedaibao.com/media/files/loxopitufegizurexirezuv.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/nuzavuwatisi.pdfIn PDF document text
    • http://karate-talence.com/newsite/userfiles/files/99858343078.pdfIn PDF document text
    • https://rumputhijau.com/contents/files/kuwivenofewozubewebamosu.pdfIn PDF document text
    • http://helloslow.com/data/userfiles/files/zidudubigaje.pdfIn PDF document text
    • https://badrivishal.com/media/16091957325.pdfIn PDF document text
    • http://jamones-luna.shopcloud.es/ckfinder/userfiles/files/xarona.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/21658030038.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/43066c02a030bcfbbd64f7f1959df689/97812439608.pdfIn PDF document text
    • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/javokegamumawawi.pdfIn PDF document text
    • https://asiantms.com/ckfinder/userfiles/files/38355886213.pdfIn PDF document text
    • http://doubles301.jp/files/ckeditor/files/49701755780.pdfIn PDF document text
    • http://druckmaschinenservice.com/uploads/fce/files/gaxijiwogifetokuravi.pdfIn PDF document text
    • http://tanabuauto.com/js/upload/files/75176376817.pdfIn PDF document text
    • http://brkvinc.com/userfiles/file/52046479754.pdfIn PDF document text
    • http://dentalcenterstudio.it/userfiles/files/80413983375.pdfIn PDF document text
    • https://lenaoyunlar.net/calisma2/files/uploads/nopamat.pdfIn PDF document text
    • https://medicabg.com/uploads/wysiwyg/files/buropitoxebaj.pdfIn PDF document text
    • http://skupka23.ru/upload/m/tedokije.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/nobuluresitemamevulafo.pdfIn PDF document text
    • http://minhledtran.com/luutru/files/pezugasuxekurigizoxi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=frozen+2+full+movie+watch+freePDF 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 extracted file (font_00_sfnt_off0000f8c6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f8c6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000110d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110D8 17596 bytes
SHA-256: 9c326f1f4180aa21da460f8c5e1eca71d4428156d2bdde88e0d398d57757d27e
font_02_sfnt_off00013e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E1A 10844 bytes
SHA-256: 60b634c3860b5d600cf19154721d7a31c0b17b5ac17f5fb118aa782b70706c33