Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7f05dfd43d8965…

MALICIOUS

PDF

81.0 KB Created: 2021-10-13 17:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 92a6c1fec9e20f6d22641155ed22d088 SHA-1: 19e8e0d8091c896a5a09fe10b74cd503bca62ce3 SHA-256: cd7f05dfd43d8965f20b295a27dc384f28bad18e23baa980a78c194bf2df38e0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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://braciszewska-klimek.pl/fck_files/file/61463448505.pdf In PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/9b4f7bd97bab69ba56fee4a0b9c17536/92234146375.pdfIn PDF document text
    • http://ubytovani-budejovice.cz/picture/vtextu/file/totelinojafuruwiwenepisuj.pdfIn PDF document text
    • http://olympicburger1988.com/uploads/files/fizexoduvujejirirumafobu.pdfIn PDF document text
    • http://chinatriage.com/ckfinder/userfiles/files/tebepinogavomuteloti.pdfIn PDF document text
    • http://medwin.kr/userData/board/file/vesorasofexagafadelaforak.pdfIn PDF document text
    • https://hinaweb.com/upload/file/4761859136.pdfIn PDF document text
    • http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/68314552946.pdfIn PDF document text
    • http://ipcmanpower.com/admin/style/images/userfiles/file/92879860176.pdfIn PDF document text
    • https://v-rshine.com/upload/images/files/luwokopukexowasel.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/13881801793.pdfIn PDF document text
    • http://shriramashramssschool.org/userfiles/file/zakewafijodelu.pdfIn PDF document text
    • http://gazosilikatnn.ru/uploads/files/80976818821.pdfIn PDF document text
    • https://behagi.eus/files/galeria/files/zonab.pdfIn PDF document text
    • http://levotst.com/uploads/files/riwefi.pdfIn PDF document text
    • https://studiecarriere.it/uploads/file/masamepepokonasonuju.pdfIn PDF document text
    • http://studiomalpocher.it/userfiles/files/15577208656.pdfIn PDF document text
    • http://chinalanpa.com/images/upload/File/97169220515.pdfIn PDF document text
    • https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/88093043768.pdfIn PDF document text
    • http://biometria.pl/photos_fck/file/gakajezuvepezolete.pdfIn PDF document text
    • http://spellenindex.nl/images/uploads/gimamibexa.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/apffultdgdhblnuo1tro613qhr/fojisewidomudojesoni.pdfIn PDF document text
    • http://pokeocncafe.com/uploads/files/sedepowoxiroj.pdfIn PDF document text
    • https://www.zolmedis.lt/ckfinder/userfiles/files/goxumalel.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16141a601a8800---ruxafivekeju.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=boost+your+focusPDF 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_off0000d94e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF160 18164 bytes
SHA-256: 0bef9a1af37ae4f04928665b16fd0d321b0b66018df98ad8ef3145d4fd640a10
font_02_sfnt_off00012024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12024 10060 bytes
SHA-256: 9112b5c839c2572a797e5d478f10d200349d7cfbb3de0ae0b9a894754d150173