Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e357fdb0c7721cf…

MALICIOUS

PDF

241.7 KB Created: 2022-06-04 16:48:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 5263b1e2f48de0f79cfe553f3e13ad00 SHA-1: 6549c3625fe9caba4513c66073fb8bf2f9928117 SHA-256: 4e357fdb0c7721cfde752d6c0bce95b76639d4bcb0a86aa4c6dba7bfd3c3dddc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8564

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 https://sunuf.co.za/XSRYdR1H?utm_term=intelligent+automation+with+vmware+pdf+download+windows+10+latest+download PDF link annotation
    • https://xekixudag.weebly.com/uploads/1/3/4/3/134336078/fulerixi-guwazib-vagunoxim-bedogexo.pdfIn PDF document text
    • https://wifebazeb.weebly.com/uploads/1/3/1/4/131482826/luriwezabana_datadapa_gugurafumopir_risite.pdfIn PDF document text
    • https://sosufafa.weebly.com/uploads/1/3/4/8/134862430/golefafufurumapa.pdfIn PDF document text
    • http://kcntanduc.vn/img_duhoc/files/75464558679.pdfIn PDF document text
    • https://jimozesixumuwis.weebly.com/uploads/1/3/4/5/134508673/2019846.pdfIn PDF document text
    • https://xijegasafofid.weebly.com/uploads/1/3/0/8/130815381/xajelivevobefosadidu.pdfIn PDF document text
    • http://conepe.org.br/public/ckeditor/kcfinder/upload/files/22494276828.pdfIn PDF document text
    • https://dawosovakix.weebly.com/uploads/1/3/6/0/136097295/dozajufejat-bipurukamilenup-rowibudo-nufoxuvedu.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/0700646d4f30f6262842792b3de0ca96/87677816762.pdfIn PDF document text
    • http://nouansporteg.com/userfiles/files/xodusiremedanolukaza.pdfIn PDF document text
    • https://pafazemewo.weebly.com/uploads/1/3/4/5/134517711/nuximasavekonoz-sibogegizidusar-sopakebuj.pdfIn PDF document text
    • https://jensbrode.de/files/file/mitomolufuki.pdfIn PDF document text
    • http://max-metal.pl/gfx/file/76611880019.pdfIn PDF document text
    • https://gulufoge.weebly.com/uploads/1/3/0/7/130776817/d303d35f77b.pdfIn PDF document text
    • https://wujewogo.weebly.com/uploads/1/3/4/5/134586314/8394885.pdfIn PDF document text
    • https://mklaassen.nl/images/file/62290145613.pdfIn PDF document text
    • https://ralixuviromod.weebly.com/uploads/1/3/5/3/135345966/0de2d8053c.pdfIn PDF document text
    • https://arhiapp.web-idea.ro/app/webroot/files/userfiles/files/78603333807.pdfIn PDF document text
    • https://warajepujevofi.weebly.com/uploads/1/3/1/8/131857140/bidija.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/6a2ef466674ed4f913ed3ee5cd64beab/16612945900.pdfIn PDF document text
    • https://wufufamur.weebly.com/uploads/1/4/1/7/141704977/pazizidorubo_zuxavo_lumiwemumeno.pdfIn PDF document text
    • https://xewefozipajuk.weebly.com/uploads/1/4/1/3/141388150/a74d1eaa67b.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161faa2ff7e84a---pekizejal.pdfIn PDF document text
    • https://chiuman-hk.com/images/file/11264391503.pdfIn PDF document text
    • http://circuitvietnamcambodge.com/hinhanh/file/gufukewefizo.pdfIn PDF document text
    • https://tobemokopa.weebly.com/uploads/1/3/0/7/130776516/274014.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 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_off00035426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35426 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00036c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36C3D 11320 bytes
SHA-256: 0dec709a1b7b729dfc27ffc73cd970f051c080aac2e227314bde352eabfcb378
font_02_sfnt_off00038689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38689 18872 bytes
SHA-256: a255381367f4a6f469844937f75f4e0fbc0c5eca8d550b74bb709d9cc955c9b1