Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af2da480f9a7c95…

MALICIOUS

PDF

80.3 KB Created: 2021-09-18 17:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 74375feb303efc8bc6380b173049977f SHA-1: c3dda4685cec768a48ea996c2c41285888648ca6 SHA-256: 4af2da480f9a7c9555b1aa271560b974cd5d0b3069708b8f50426da9ca950542
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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 https://affordans.com/ckfinder/userfiles/files/fisamogirimovux.pdf In PDF document text
    • http://fantalife.nl/userfiles/file/kinuposiwijeg.pdfIn PDF document text
    • https://attack.lt/images/files/19718721062.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/37279058506.pdfIn PDF document text
    • http://clinicaveterinariasangiacomo.it/userfiles/files/ketatiratovobowefulem.pdfIn PDF document text
    • http://zima.italie-ubytovani.cz/data/file/bilet.pdfIn PDF document text
    • https://planningpvedh.nl/ckfinder/userfiles/files/rosalajiwekebenoti.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/oibdhn5krjtgdpe9h093eca2vr/mapezetujevude.pdfIn PDF document text
    • http://xn--j1aai7d.xn--p1ai/userfiles/file/45372247097.pdfIn PDF document text
    • https://jmtours.co/aym_image/files/69144540949.pdfIn PDF document text
    • https://saptabangunmanunggal.com/indomobils/upload/file/rovapubijapakezip.pdfIn PDF document text
    • https://intersat.lv/files/file/kubewegutazikizaxokokapun.pdfIn PDF document text
    • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/53723454432.pdfIn PDF document text
    • http://svadbavmoskve.com/content/xuploadimages/file/rufibewovorijopowo.pdfIn PDF document text
    • https://frontivo.ro/userfiles/file/26477307965.pdfIn PDF document text
    • http://nationalherbo.com/userfiles/file/37251805885.pdfIn PDF document text
    • http://consade.com/userfiles/file/40295778961.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161306cbc46810---lumowete.pdfIn PDF document text
    • http://debschoen.com/userfiles/file/pewerunepenibabukal.pdfIn PDF document text
    • https://duproject.com/uploadEditor/files/29012455666.pdfIn PDF document text
    • http://cp-tournament.org/ckfinder/userfiles/files/xovevawebaka.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613146c44433e---bofawolaxidatefu.pdfIn PDF document text
    • http://anhuicrew.com/upload_fck/file/2021-9-11/20210911212748911485.pdfIn PDF document text
    • http://abwsalisbury.com/uploads/files/41989926645.pdfIn PDF document text
    • http://lukinserv.hu/file/67630164593.pdfIn PDF document text
    • https://tessuno.com/upload/files/6134add559ee5.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=codes+for+pokemon+let%27s+go+eeveePDF 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_off0000cc0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0B 10812 bytes
SHA-256: b2d452dbeb9f45c6ab9551b25c19868be717557e487872eb72c32ad845904f60
font_01_sfnt_off0000e4db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCED 21072 bytes
SHA-256: 1ce490f3b9854d295a8015161e834af4a5092194ccfb4d4d87b01b70d1bbb11a