Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3fc46eba10b0d1…

MALICIOUS

PDF

71.1 KB Created: 2021-10-03 13:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: ae7d30a42b4b8c6dd25f2920ff9b2627 SHA-1: 7f74c9c81bf7afa206e98279f11aa6cc69f79e1b SHA-256: 4e3fc46eba10b0d19e22070ead243d6d0388a458b0b2acc8c147b5c949a7bc6f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://veitali.com/upload/files/12286545445.pdf In PDF document text
    • https://buonoantonio.it/userfiles/file/depoteziterovotafigupibuv.pdfIn PDF document text
    • http://sinoscaform.com/upload/ckimg/files/202109102335349811.pdfIn PDF document text
    • https://detmers-kontejner.hr/files/vagukevufojabowif.pdfIn PDF document text
    • http://z500.si/files/9169738649.pdfIn PDF document text
    • https://nexapos.com/upload/files/39873267540.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/811248883.pdfIn PDF document text
    • http://compow.net/ckfinder/userfiles/files/lejuziwi.pdfIn PDF document text
    • http://vecsecity.info/editor_up/pesedujafexezego.pdfIn PDF document text
    • https://www.hkha.org/ckfinder/userfiles/files/viguvo.pdfIn PDF document text
    • https://gamaconsultores.cl/upload/file/vonememaxiganakesuwafi.pdfIn PDF document text
    • http://bernardthevenet.fr/ckfinder/userfiles/files/ximoluge.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/ac16fefb1fee7646b81a65f699764099/46472158207.pdfIn PDF document text
    • http://e68momo.com/shopadmin/upload/files/3632358912.pdfIn PDF document text
    • http://186086.com/upload/files/37364048781.pdfIn PDF document text
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/51778eaf47fb171a71d8412ebaf053de/tudux.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614821827abd2---fifozubuxexosatirofuledox.pdfIn PDF document text
    • http://architettotoma.it/userfiles/files/69377579642.pdfIn PDF document text
    • http://kvarkeno56.ru/userfiles/file/pavaxijosop.pdfIn PDF document text
    • https://emailchopper.rockeit.com/userfiles/file/249754762.pdfIn PDF document text
    • https://thaiwoodengames.com/files/upload/files/95575134941.pdfIn PDF document text
    • https://anctools.com/ckfinder/userfiles/files/2667755502.pdfIn PDF document text
    • http://www.museopizarra.com/ckfinder/userfiles/files/jemakedowonupaj.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/90021dedc77a70d420a4c5291ba93218/poriviwinutozege.pdfIn PDF document text
    • http://alompar.hu/uploads/content_files/files/xufulameregedimasowanoto.pdfIn PDF document text
    • http://buddhavehicle.com/userfiles/file/fomuvefot.pdfIn PDF document text
    • https://lemonsport.sk/upload/file/93234041290.pdfIn PDF document text
    • https://psystat.net/candyticket/uploads/page_images/files/9134149496.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=dry+rub+for+boston+butt+in+slow+cookerPDF 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_off0000b71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB71A 10700 bytes
SHA-256: 6cf3ce963fde91c4f15fbc2db89ec1e1f27a6d8fc8e0f267763a96017278c805
font_01_sfnt_off0000cfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e7f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F8 15144 bytes
SHA-256: 699f602ed92a1b38b83ec4718bbfb9036611cb5a3d4f88307bcc3500b4d49bb0