Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e352a0d27fb8f58…

MALICIOUS

PDF

492.8 KB Created: 2021-12-18 17:45:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 8c27642757893d66f27091f44ce23fac SHA-1: a9900738131aeb81f28ea42ebf6107083bf4005e SHA-256: 4e352a0d27fb8f585bea93b7b788ded9180ae8e35bd03f6916a0c1e951145088
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5627

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
  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://infrive.ru/uplcv?utm_term=1+to+100+copy+paste PDF link annotation
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619c80a75ffdd---57658406018.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/66310665824.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/67222139709.pdfIn PDF document text
    • http://jumpstart.mobi/userfiles/file/revasoze.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161a850c4659df---99638022737.pdfIn PDF document text
    • https://a-guskov.ru/uploads/files/fokosuwadijamenotanineg.pdfIn PDF document text
    • http://cheniou.handysociality.com/upload/files/13150977141.pdfIn PDF document text
    • http://solar-makernavi.com/ckfinder/userfiles/files/dudobufejilamuporo.pdfIn PDF document text
    • https://pma-germanlct.com/uploads/files/73519188156.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/7c1a7159c4e16e6010bd55994c7bce44/tatovas.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ncnria7qqmf41n61cuv3e2ue5j/zebilorigisevuwito.pdfIn PDF document text
    • https://kaskad-74.ru/images/uploads/forifazawogesarudu.pdfIn PDF document text
    • https://allcreaturesinc.com/files/files/25387123100.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/93o1ejgevqm5q9dk77gfna0i1f/xulasaze.pdfIn PDF document text
    • https://mimpishiosatu.com/contents/files/lugefelugedisu.pdfIn PDF document text
    • http://metafelix.it/userfiles/files/rinobugixovasitokogodas.pdfIn PDF document text
    • http://hyunsin.net/userfiles/file/19995209613.pdfIn PDF document text
    • http://dienlanhtruongson.com/upload/files/dizurowepar.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161b7171e3dcf0---dozemememobid.pdfIn PDF document text
    • http://nena-artspace.com/ckfinder/userfiles/files/7047643036.pdfIn PDF document text
    • https://cicadit.ro/UserFiles/file/40213633921.pdfIn PDF document text
    • http://creative-format.com/upload/editor/files/93216510926.pdfIn PDF document text
    • http://didaconcept.com/admin/fckeditor/file/zubejukufopiteja.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161b7ee9c6f8b2---juwudavirozibopebebeparu.pdfIn PDF document text
    • https://rsun.pro/admin/ckfinder/userfiles/files/nitigejitabu.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_off0007496d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7496D 10216 bytes
SHA-256: 32e6ca1a1c2fe117857368dba2ce9df0c239baefa6b121269ed708db52ebcc5b
font_01_sfnt_off0007608b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7608B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0007772a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7772A 17676 bytes
SHA-256: 6df27b24cfb4f5554e14b1ba0a804b51f0ac819728e7ba73c9b3e638110ec1bc