Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e9c2552e5bd4b8…

MALICIOUS

PDF

451.1 KB Created: 2022-03-01 19:12:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4d91f094aa9355f5eed1ec817c9fce36 SHA-1: 66a56a90b81f2b6c6ddb7a4151c83d2d158c07cc SHA-256: d3e9c2552e5bd4b8e8b30033f37821e7a2a96ec136a0c9ebbcdb704fde5a515d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5671

Heuristics 8

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://norin.co.za/XSRYdR1H?utm_term=cassytha+filiformis+distribution PDF link annotation
    • https://konchris.com/userfiles/file/1644144233.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/35828455884.pdfIn PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16212a4cf5cf0e---36486072669.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/207130116.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/55937318222.pdfIn PDF document text
    • http://terrigena.cz/data/pic/files/1828578721.pdfIn PDF document text
    • https://transturist.ba/ckeditor/ckfinder/files/files/bapiz.pdfIn PDF document text
    • http://peoplefoster.com/pliki/48934425301.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/a61a6420b6269d7bb9a00cb6cbce7cf4/zafabepewi.pdfIn PDF document text
    • http://www.casopisfolklor.sk/assets/kcfinder/upload/files/73857618313.pdfIn PDF document text
    • http://www.bash.cl/media/file/febomugivovakorel.pdfIn PDF document text
    • https://www.edaas.com.tr/admin/kcfinder/upload/files/20934223897.pdfIn PDF document text
    • https://ongnuocdenhat.com/upload/files/95608678423.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161fcd5f2404d2---zagogesekajozup.pdfIn PDF document text
    • https://tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/nafukurebabixaxalakonezu.pdfIn PDF document text
    • http://olivetheater.com/userData/board/file/vosefiliwezesozofukad.pdfIn PDF document text
    • http://forensique.com/app/webroot/kcfinder/upload/files/zebuvusam.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/wisogofavako.pdfIn PDF document text
    • http://nhatminhtrading.vn/app/webroot/uploads/files/zesepekelajuzalefad.pdfIn PDF document text
    • https://newshieldinsurance.com/demo/gsa/final/images/file/11974089206.pdfIn PDF document text
    • http://joltiy.ru/uploads/files/pufejekavunapenile.pdfIn PDF document text
    • http://pulsarvn.com/media/ftp/file/tumegofinafakoxu.pdfIn PDF document text
    • https://bisnismedsos.com/userfiles/file/zopexotaruxipizojaz.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b069b0029d---67586061999.pdfIn PDF document text
    • https://aspit.ro/imagini_ws/gonadojaw.pdfIn PDF document text
    • https://profesa.net/userFilesfile/86250824081.pdfIn PDF document text
    • https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/10642363494.pdfIn PDF document text
    • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/ruvipigibugagofenoviku.pdfIn PDF document text
    • https://habibitoursegypt.com/ckfinder/userfiles/files/4961448737.pdfIn PDF document text
    • http://candleelectricals.com/uploaded_files/userfiles/files/fuzenupofizepoxu.pdfIn PDF document text
    • https://www.apsar.es/assets_back_office/js/plugins/kcfinder/upload/files/demijezadajav.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1621b50a522645---90269235624.pdfIn PDF document text
    • http://chmer.yun2u.com/upload/files/87654755830.pdfIn PDF document text
    • https://coaching-jk-academic.com/ckfinder/userfiles/files/kapejogebozotowigazen.pdfIn PDF document text
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/xiwotirifimawek.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_off00069f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F60 17708 bytes
SHA-256: e3dc3efb347939045ac9a493d2fed77243f3fdbc8d17a60016fa7030cd1a23b7
font_01_sfnt_off0006cd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD29 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006e449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E449 10872 bytes
SHA-256: 8a6161a2019577be263029c78f31139593605259d8647d81653ca9bfcfa558f6

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