Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87d6ff371e18719…

MALICIOUS

PDF

342.6 KB Created: 2022-03-16 12:06:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 4592300a7d706c5a996b211263c11586 SHA-1: 3986c26041a51d78b6639da2a11a41f04dda5cc0 SHA-256: f87d6ff371e18719d6c92a1c9776b77cd4a9a0b69bfc20e1c24cca411a3a01e1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6467

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://wirut.co.za/XSRYdR1H?utm_term=problem+solving+math+worksheets+4th+grade PDF link annotation
    • https://purevdavaa.mn/uploads/ckfinder/files/bukulubewifubaponuvexo.pdfIn PDF document text
    • http://faradbox.pl/files/file/lonidijebevizukupopit.pdfIn PDF document text
    • https://fajanav.com/aym_image/files/27479078633.pdfIn PDF document text
    • http://euromarkcreations.com/new/fck_img/file/bajuzezupilabefezuzo.pdfIn PDF document text
    • http://ep9.cz/kcfinder/upload/files/kekuzawegexew.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161fdf9a99e189---rarilelifetaduganu.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1622b1b4b71fa4---jujegizepuvuwagademaxej.pdfIn PDF document text
    • http://vlaevski.com/admin/kcfinder/upload/files/fizogonasev.pdfIn PDF document text
    • http://retrievers.su/ckfinder/userfiles/files/dadajinijevinetunibigad.pdfIn PDF document text
    • http://warsztatgdynia.pl/app/webroot/media/files/tevipagexik.pdfIn PDF document text
    • http://korea-labels.com/ckfinder/userfiles/files/56279093610.pdfIn PDF document text
    • http://anantasandesh.com/dbros/public/ckeditor/kcfinder/upload/files/nagivizivoxafatopudute.pdfIn PDF document text
    • http://neoclassicalmansions.com/uplds/file/75294410143.pdfIn PDF document text
    • https://yun2u.com/upload/files/zolerul.pdfIn PDF document text
    • https://planbmedia.hu/files/kuvewevaputirewesiwuwawax.pdfIn PDF document text
    • https://interservicioscr.containter.com/img/imagenes_editor/file/menevezavasabe.pdfIn PDF document text
    • https://webkapper.nl/ckfinder/userfiles/files/19286580166.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/7c418e684d4dbaeeb9aa4a4dfb51477d/72870450897.pdfIn PDF document text
    • http://cattaneoarchitetti.it/userfiles/files/96574366507.pdfIn PDF document text
    • http://nesemlak.com/test/images/uploads/files/nunagun.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209d6455ed76---20700587161.pdfIn PDF document text
    • http://aeu.pretty-match.com/upload/files/29946548051.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b6a5880022---zenemarizures.pdfIn PDF document text
    • https://proektasis.gr/admin/spaw2/uploads/files/gelugekuvononovixofidofo.pdfIn PDF document text
    • https://hkhhvac.com/nbloom/fckuploads/file/dujonokujekofominikidol.pdfIn PDF document text
    • http://www.focitabor.hu/userfiles/file/50088658927.pdfIn PDF document text
    • https://pracowniatechart.pl/fckpliki/file/10592583583.pdfIn PDF document text
    • http://thaimassageboy.com/ckfinder/userfiles/files/zofirevebuporokugomafev.pdfIn PDF document text
    • https://trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/fodawunevamorazowev.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/778da36d389d780b46222e2dfbf70f9a/64524091506.pdfIn PDF document text
    • http://greffe-cheveux-tunisie.fr/ckeditor/kcfinder/upload/files/wabigijaturikemivobutu.pdfIn PDF document text
    • http://domkomplekt34.ru/attachments/file/27062499573.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/dagiligametipusamabobepe.pdfIn PDF document text
    • https://gitimohammadilakhimpur.org/ckfinder/userfiles/files/9228447193.pdfIn PDF document text
    • http://mixline.ru/img/lib/file/vedefawuv.pdfIn PDF document text
    • https://cvr.repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/99194785563.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_off0004e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E8C0 11156 bytes
SHA-256: bf8f9840e83a16725d2e5898eef48bd2304a2c7a38b04e2b5d60fc1c34147186
font_01_sfnt_off00050282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50282 18512 bytes
SHA-256: cad2c9aee7817496c6aa1ead6e49921573195e32d7dbc5049c03cae2cad789d1
font_02_sfnt_off00053275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53275 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

Open this report in the interactive analyzer, or submit your own file for analysis.