Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe970347dc55f5c…

MALICIOUS

PDF

123.7 KB Created: 2021-12-07 13:17:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 40873ea7843bfdd90dd98c64c014b431 SHA-1: 4e6343dd0d228632bc4c77bd753d0f977a1541c3 SHA-256: cbe970347dc55f5c07ec64ad6babde2436584862b17730c55d30e3f3243212b6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9840

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://denetimmusavirlik.com/userfiles/file/wugogapupikapetuko.pdf In PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312b762dc81---nebawisofakevi.pdfIn PDF document text
    • http://perilatomsk.ru/ckfinder/userfiles/files/kurarulolosajafumozomo.pdfIn PDF document text
    • https://gikguamerica.com/userfiles/file/vubozalitosixexosod.pdfIn PDF document text
    • https://franchiseinnovations.org/broker-site/files/files/kubipitumel.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143faa06556d---fofunigapotijidurav.pdfIn PDF document text
    • http://gcoekmr.org/cukashmir/User_Files/imagefile/74939694952.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/7cvtgeu54qicjgrh56qi4u2fma/lagunizi.pdfIn PDF document text
    • http://tulga.ru/editor/files/nitararasevaxejoriman.pdfIn PDF document text
    • http://yijianjiance.com/userfiles/file/20211012001458_223811850.pdfIn PDF document text
    • http://starysklep.itmega.pl/photo/file/renegesakogadupakiximajob.pdfIn PDF document text
    • https://masukpt2.com/contents/files/42750648720.pdfIn PDF document text
    • http://rkenterprisesonline.com/FCKeditor/file/pitobagagejiwusuzawabib.pdfIn PDF document text
    • https://gamepinleri.com/calisma2/files/uploads/16033318059.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/jinomifamuraxetifadaj.pdfIn PDF document text
    • https://ville-saintleonard.fr/pdf/xogefobagozuxa.pdfIn PDF document text
    • http://ducthanhtam.com/uploads/userfiles/file/tedobixob.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613bfc5d84bbd---rupazaxizaderet.pdfIn PDF document text
    • https://musluogluotomotiv.com/upload/ckfinder/files/zakuzure.pdfIn PDF document text
    • http://master-br.ru/img/file/27000566104.pdfIn PDF document text
    • http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/jagoloruli.pdfIn PDF document text
    • http://mgok.jutrosin.eu/userfiles/file/vagototugowigubisufukino.pdfIn PDF document text
    • https://globalathena.com/ckfinder/userfiles/files/dijiwepagenupagebajaka.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a090772deb3---suzeritat.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/tgwjJlsMqHc/uplcv?utm_term=vivitar+bluetooth+speaker+v60063alx+manualPDF 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_off000180a5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000180a5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000180a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x180A5 17776 bytes
SHA-256: 63c05f8a128c224326a4e01ac31cefcc5ac1d3045587759b1d09cd2b53513663
font_01_sfnt_off0001aeed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AEED 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0001c591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C591 11448 bytes
SHA-256: fad4bf27fdc8fdde3a7df359e3a80d16f2af8795527f10f26efd64ec65891b7f