Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50660f3bf98eb7b…

MALICIOUS

PDF

304.3 KB Created: 2022-03-19 03:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: 0255c79e46bbe7045cbaf8445e2a2e80 SHA-1: 5721ce723c5c575fbcbce29ad95587c04940fdf0 SHA-256: d50660f3bf98eb7bd7fcc99dc26e06f25cbf12cc5e7a3cc9182085a02a1a23f9
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://lazav.co.za/XSRYdR1H?utm_term=carbonite+server+backup+agent PDF link annotation
    • http://hutnia.pl/userfiles/file/desedanifawuririf.pdfIn PDF document text
    • https://superlitefan.com/uploads/files/14261946716.pdfIn PDF document text
    • https://nhuadailoan.vn/upload/userfiles/files/87563735246.pdfIn PDF document text
    • http://kolter.es/uploads/files/kemivejemilesusobikupag.pdfIn PDF document text
    • http://sirinthepgroup.com/userfiles/file/gepovojinuve.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa62de62c8d---95450250317.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/4672418563.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1621bc6a8d1b8b---waxalavovate.pdfIn PDF document text
    • https://cooperspick.com/files/xifetamubedixupolalup.pdfIn PDF document text
    • http://bamila.vn/luutru/files/39917182624.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/162057a3c34fd5---zodujitopid.pdfIn PDF document text
    • https://menatunis.com/uploads/FCK_files/file/vafisifokusodabatorenag.pdfIn PDF document text
    • http://sinbad.sy/admin/kcfinder/upload/files/zetarevekoxatobaduzinegef.pdfIn PDF document text
    • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/52850640217.pdfIn PDF document text
    • http://ecrad.org.bd/assets/ckeditor/kcfinder/upload/files/gonomiloni.pdfIn PDF document text
    • https://archguruorg.welkinovation.com/admin/UserFiles/images/files/nojabuf.pdfIn PDF document text
    • http://keifo.ru/ckfinder/userfiles/files/tatibuzuva.pdfIn PDF document text
    • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/xugitijilotezubuwenatoket.pdfIn PDF document text
    • http://corpinal.com/kcfinder/upload/files/kagunafemijafekone.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/f83ffbf30d83a56a1da1d920a07b8d57/fexifozulepopufulijokejik.pdfIn PDF document text
    • http://thainightjob.com/ckfinder/userfiles/files/20404134402.pdfIn PDF document text
    • https://scmsgroup.org/ckfinder/userfiles/files/rodaw.pdfIn PDF document text
    • http://smsalumni1971.com/apadmin/uploads/userfiles/files/faxarelofetuwo.pdfIn PDF document text
    • http://www.mkfilm.it/ckeditor/kcfinder/upload/files/puwow.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_off00044ca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44CA0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000463bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x463BB 20080 bytes
SHA-256: a08df42db0e2241ac44616d1fcb47a09177a5c5d18799d961a22cd18c81e9058
font_02_sfnt_off000498fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x498FA 10932 bytes
SHA-256: c87f09ce6a7a276ade934ddd078777b1814aa70eb90559ef36a061717bcaaee8