Malicious PDF — malware analysis report

Static analysis result for SHA-256 d28ee0ff7692b6a6…

MALICIOUS

PDF

332.9 KB Created: 2022-03-02 07:11:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-23
MD5: 68b5e708b75a907df426f3841659a477 SHA-1: 4426d9c4ad32f1c00bbee4d1870c3b08f763019e SHA-256: d28ee0ff7692b6a67c50b40ca847899cb52682266eb2f1ee531263c30c6e4709
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

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
  • 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.
  • 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://rosettes.it/userfiles/file/31033538113.pdf In PDF document text
    • http://kickstartfintech.com/ckeditor/kcfinder/upload/files/dozukemakomofezumufi.pdfIn PDF document text
    • http://www.donkersmontage.nl/kcfinder/upload/files/44194738404.pdfIn PDF document text
    • http://zzfcw.com/file/fkimg/file/fujusekenar.pdfIn PDF document text
    • https://erdenet.mn/userfiles/file/fojutup.pdfIn PDF document text
    • http://dlevitin.ru/fck_editor_files/files/50762403468.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/44177f6c1ae84aacfa786c6d7352e387/tibozowabaxuletixes.pdfIn PDF document text
    • http://www.globalconference.info/kcfinder/upload/files/65946464274.pdfIn PDF document text
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/875dbc1e0883db8ab1abf9be6ffc6d2f/golovefawabegudawalosu.pdfIn PDF document text
    • http://www.iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/40783807897.pdfIn PDF document text
    • http://terezmisszio.eu/files/file/mipoxaxifa.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161fe82347ad8c---weretujiwobaz.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/nunema.pdfIn PDF document text
    • https://tennis-samara.ru/img/file/62942640514.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/g04lovij9ti3us0eoeoeq6pha7/83476353797.pdfIn PDF document text
    • https://autohausnschmidt.de/userfiles/file/22343181098.pdfIn PDF document text
    • https://ashasuchikala.com/ckfinder/userfiles/files/zekegibelokexujabe.pdfIn PDF document text
    • https://www.sherpachristain.org.np/ckfinder/userfiles/files/36560128650.pdfIn PDF document text
    • https://onlinendttraining.com/files/goruwologa.pdfIn PDF document text
    • https://congtydaihai.com/upload/files/10413436406.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/gujojarozifibolejelogo.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621542200943f---19072719817.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/34486977439.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/dezan.pdfIn PDF document text
    • http://www.luchpain.ru/kcfinder/upload/files/60249648236.pdfIn PDF document text
    • http://gdi-fr.com/upload/upload/31844761246.pdfIn PDF document text
    • http://edukoc.net/userData/ebizro_board/file/muduzeridibem.pdfIn PDF document text
    • https://elemental-ia.com/userfiles/file/fojorivobodedasefup.pdfIn PDF document text
    • http://vp-concept.ch/app/webroot/kcfinder/upload/files/92552348270.pdfIn PDF document text
    • http://tai-yang.tw/taiyang/upload/file/37383428649.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/2568474564.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/33330970752.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=bed+bath+and+beyond+sheets+queen+sizePDF 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 extracted file (font_00_sfnt_off0004c241.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c241.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C241 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004d961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D961 10812 bytes
SHA-256: 1b7317faf3370666bd6ebf9cec579da154f9e163c6e6595bc78b9542a2b3e6d8
font_02_sfnt_off0004f21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F21F 18924 bytes
SHA-256: f6653fcd9bf01944e38a24c61abbf6a8e992ef1e2a3a179154ca015c2bbffb29