Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd03972fd33cdba…

MALICIOUS

PDF

255.3 KB Created: 2022-01-02 12:57:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: fc36555d7f010485c7236fc9b4a87e8d SHA-1: 798b1c737e7ad3dd3c3a48f1ebf7808f453c5777 SHA-256: 3dd03972fd33cdba6ce099e105540f1e229c4b3ecc4ee8342ac03c0b515ed384
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7018

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.
  • 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://oniceh.ru/uplcv?utm_term=vermiform+appendix+is+a+part+of PDF link annotation
    • https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/giwogavuwu.pdfIn PDF document text
    • http://sonnenheizungen.ch/fckeditor/editor/images/file/74134189593.pdfIn PDF document text
    • https://vannordenvastgoed.nl/userfiles/file/32293116741.pdfIn PDF document text
    • http://csc-028.com/userfiles/file/20220102174506_vvg5ov.pdfIn PDF document text
    • http://wuyioutdoor.com/userfiles/file/liwogadebulatejigolo.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135537cd412a---mizuk.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/84249141543.pdfIn PDF document text
    • http://www.dereformasenalicante.com/archivos/files/gozikuturote.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1619700f68eafa---46828018145.pdfIn PDF document text
    • https://shop-ecobati.com/medias/upload/files/rovebojenawoluguzebufa.pdfIn PDF document text
    • http://brcassociati.com/userfiles/files/dipawokepubuvakotu.pdfIn PDF document text
    • http://se-ty.com/uploads/userfiles/file/2567485910.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/16223164168.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1619ea27bcb47a---dateromazime.pdfIn PDF document text
    • http://sakurahoaanhdao.com/webroot/img/files/xorapawejonefejikupiko.pdfIn PDF document text
    • https://pagodatalk.com/_UploadFile/Images/file/lanozoxitonatu.pdfIn PDF document text
    • http://russia-ex.com/images/blog/file/kikupusovikuwimunibeda.pdfIn PDF document text
    • http://pastoret.it/userfiles/files/85217499250.pdfIn PDF document text
    • http://www.520amis.com/upload/files/vosilepasapedukesukul.pdfIn PDF document text
    • https://tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/82531354739.pdfIn PDF document text
    • https://tagoproperties.com/ckfinder/userfiles/files/rinoxulakekoserofozo.pdfIn PDF document text
    • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618f2ad35c7aa---91507975308.pdfIn PDF document text
    • http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/mutajezijuvux.pdfIn PDF document text
    • http://cluboutletmoto.net/campannas/file/58432748985.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_off00039008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39008 18044 bytes
SHA-256: 305018ed5d771c9dbd1ddc46522bad9c352d9afd63be483e199f2b45d22cda48
font_01_sfnt_off0003bf40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BF40 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003d5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D5E4 10684 bytes
SHA-256: 0d688f209d4c60a9ba47709a4206005f91f256c1256fb5d3c104a79d3d145388