Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b607d574ab70f55…

MALICIOUS

PDF

74.2 KB Created: 2021-10-04 17:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 83b069c4f87dc0d9299210e988617013 SHA-1: 6798037dfba4be3199415d76df92fd6fd727b6a3 SHA-256: 2b607d574ab70f556c34912945c816e69c7ba06ce62e4a10d0ea5fe31f29f4ff
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/kbr7838k1679bb0gr0um0vuuag/89675064639.pdf In PDF document text
    • https://safetypadlocks.eu/eurostyl/photos/file/69389707008.pdfIn PDF document text
    • http://easyreturn.store/userfiles/file/rawevizotemibujeteb.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143971bcc679---kokonusotilisutonejupi.pdfIn PDF document text
    • http://kartelabasligi.com/images_upload/files/15453105090.pdfIn PDF document text
    • http://cosmik-kinoteatr.ru/sadm_files/18710989700.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/29795317904.pdfIn PDF document text
    • http://fbrasil.com/userfiles/file///jomaraxelufawu.pdfIn PDF document text
    • http://schokozentrale.de/idata/dujojejo.pdfIn PDF document text
    • http://fge-service.com/userfiles/file/nitimupuxaz.pdfIn PDF document text
    • http://tivatijapan.com/uploads/userfiles/file/87859874055.pdfIn PDF document text
    • http://fongyoskert.hu/userfiles/files/93534765005.pdfIn PDF document text
    • http://ecogestval.es/userfiles/file/rewut.pdfIn PDF document text
    • http://greenbelt.abwingsmd.com/uploads/files/13059631750.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/pizimigukizisozule.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/nowisubemilufedeju.pdfIn PDF document text
    • https://scavilecis.it/userfiles/file/28152724625.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/1677cbfb19b7e0805686c1cd76d6ae39/mapovuzowobep.pdfIn PDF document text
    • http://yesilderecine.com/admin/editor_resim/file/liwaderegovapuja.pdfIn PDF document text
    • https://thietbigas.net/media/files/bijinizinupogar.pdfIn PDF document text
    • https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/jifotoxozanoxusobasorivuk.pdfIn PDF document text
    • http://hawaii-resort.info/images/blog/file/66826972227.pdfIn PDF document text
    • http://skipjackpoke.com/ckfinder/userfiles/files/tivakebo.pdfIn PDF document text
    • http://bytip.net/filespath/files/20210917074156.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/61f52704196e41075ffa3df658dc086e/19745508498.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=newport+middle+school+phone+numberPDF 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_off0000bd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD60 10920 bytes
SHA-256: 6d0139631fc725982c6cabcd5458f1c27219b2ca0540178d61bb22b6a3a73896
font_01_sfnt_off0000d642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD642 17552 bytes
SHA-256: f4ea5f4c371554381e19d3586a16ab74c8137656281b81d11b54fbfa8fe617b2
font_02_sfnt_off00010309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10309 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1