Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f36857bfc2ca7…

MALICIOUS

PDF

206.2 KB Created: 2022-01-05 01:17:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: bd9383ca15a1c0aad5a110afad772caa SHA-1: ba0de3a69f0ccd5d377b41ea9ae187ec3d724ae9 SHA-256: 941f36857bfc2ca7042bfeaed245c2086238c44d378d37609a3ee7742c08290f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8404

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16160ced8b329a---pivugov.pdf In PDF document text
    • http://cdmatik.com/uploads/file/10334810183.pdfIn PDF document text
    • http://ywjxz.com/userfiles/image/2021/11/file/gotuwin.pdfIn PDF document text
    • http://domingo.hu/ckfinder/userfiles/files/82193255467.pdfIn PDF document text
    • http://rovitek.com/userfiles/file/ropefamepur.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1614af15481c39---butelasipekamur.pdfIn PDF document text
    • http://erdelyironkbutor.hu/admin/kcfinder/upload/files/56520337697.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16188a93ee4322---84176915135.pdfIn PDF document text
    • http://cappellastudio.it/userfiles/files/71208393891.pdfIn PDF document text
    • http://lauko-baseinai.lt/i/File/safuxefuwep.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/punovi.pdfIn PDF document text
    • http://littlepearlspublishing.in/data/eimages/file/95355642532.pdfIn PDF document text
    • http://rediger.vammenkro.dk/upload/files/sarul.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1618dd274f3d9c---60048602265.pdfIn PDF document text
    • http://snabsz.ru/ckfinder/userfiles/files/roravetekaxobowideza.pdfIn PDF document text
    • https://alexandrapanayotou.com/web/images/static/file/71794450588.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161850ea6bca0e---50997477907.pdfIn PDF document text
    • http://4bzsoftware.com/Images_upload/files/diraroroga.pdfIn PDF document text
    • https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/66435295605.pdfIn PDF document text
    • https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/ginetonumosijifegu.pdfIn PDF document text
    • http://sjhtractor.com/d/files/82622224368.pdfIn PDF document text
    • https://jagamimpi.com/contents/files/77862183301.pdfIn PDF document text
    • http://asavn.vn/uploads/userfiles/files/41097237142.pdfIn PDF document text
    • http://thailaundry.com/imgUpload/files/dokezaxej.pdfIn PDF document text
    • http://thietbikhachsanvinhhung1.com/upload/files/buguxuvulovozaxaz.pdfIn PDF document text
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/6mt120bvn4rh87q45so2uklgnd/relizu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/tgwjJlsMqHc/uplcv?utm_term=sylvania+light+bulb+guide+autoPDF 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_off0002ce2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE2E 10752 bytes
SHA-256: 7c9aadd16ae8f42d1f311fdb766dda6b8c36700274f9523488d0363ebeb84e11
font_01_sfnt_off0002e6a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6A5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0002fd44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD44 17188 bytes
SHA-256: 0bf9aaae4f3104b57e31a6e1d3f238da51936c8a620b11a9d9832805d3aa3e9e