Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d373f3f0c9a8c0e…

MALICIOUS

PDF

419.7 KB Created: 2022-03-27 21:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: f0d464f03ad9620a1047134a6b40b35b SHA-1: 94e7156f29b5b39792eb601eb9abea0fa2c8e840 SHA-256: 5d373f3f0c9a8c0ea3c8bd6b9aa3142b8ba26007e31129e67291de0c70c1525f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d1ca22f27e---22005841179.pdf In PDF document text
    • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229402cdbf11---61688222285.pdfIn PDF document text
    • http://iuppiteredizioni.it/kcfinder/upload/files/14402209641.pdfIn PDF document text
    • http://nuklearmedizin-amro.de/userfiles/file/funuvenebumujalifaro.pdfIn PDF document text
    • https://cissud.eu/uploads/ck_editor/files/zivetodinupamaga.pdfIn PDF document text
    • https://simorgh.it/uploads/file/joxidinene.pdfIn PDF document text
    • http://dalaichau.com/files/getefadotosepakexegud.pdfIn PDF document text
    • http://xavitec.com/cliente/conteudos/files/guzadutewijirijalona.pdfIn PDF document text
    • http://phuquytravel.com/nguyenvanlinh/files/18843895883.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16222b7470b7e1---kasavuxajibatuwefigebowu.pdfIn PDF document text
    • http://locthanhwindow.com/img_duhoc/files/xolopejom.pdfIn PDF document text
    • http://ping-property.com/user_img/files/76572089498.pdfIn PDF document text
    • https://comillaspostgrado.es/userfiles/file/suvafesitawibolosaz.pdfIn PDF document text
    • https://samirkumarpaul.com/ckfinder/userfiles/files/tidit.pdfIn PDF document text
    • https://fundacjacat.halpress.eu/userfiles/file/xibetaxavoduxek.pdfIn PDF document text
    • http://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/50268548529.pdfIn PDF document text
    • http://hasomedia.com/userfiles/file/8374501274.pdfIn PDF document text
    • http://divorce-difficile.fr/userfiles/file/demetotuzo.pdfIn PDF document text
    • http://mathahospital.org/userfiles/file/38463170939.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/16203acf3b2493---ruwabojerirexamidifoz.pdfIn PDF document text
    • https://ezokniga.com/uploads/file/gadum.pdfIn PDF document text
    • https://hockeymro.ca/docs/file/lurafafifawiwuwofo.pdfIn PDF document text
    • http://webursitet.org/kcfinder/upload/files/fasavirezuno.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1474139740622532b92e9ee.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/94516585213.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=au+aw+printable+worksheetsPDF link annotation
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225f4e13bdcf---pexokufesefovesanepojuxef.pdfIn PDF document text
    • 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_off00061dc0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00061dc0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00061dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DC0 10748 bytes
SHA-256: e0791a179de43758d32c8ef1cfcd736ba71ad5ca72b0155f992510e49a93a2ef
font_01_sfnt_off00063647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63647 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00064d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D62 19004 bytes
SHA-256: c682e56d2ac457c805a7d29bf63b1e263d1b567455d61c0d0889c0e1486b0f4f