Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f385a78d56cee4c…

MALICIOUS

PDF

239.0 KB Created: 2022-03-22 12:49:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 3acd601a02c5af3fd57ed888e6317179 SHA-1: c30ad6e27a6a1b77746c5b118295a9b7ae952bda SHA-256: 5f385a78d56cee4cc6822b694aacb1ded7053d038f412766456a1a3343ae4af4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7350

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 http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/162147d614096e---gimobaselivadadomabitosas.pdf In PDF document text
    • http://htk2.altrodesign.eu/ckfinder/userfiles/files/83242280325.pdfIn PDF document text
    • https://htkvn.vn/public/admin/plugins/kcfinder/upload/files/gukevononotuwemus.pdfIn PDF document text
    • https://gatheritup.com/js/kcfinder/upload/files/11559886936.pdfIn PDF document text
    • http://lungshingcentre.com/userfiles/41569589879.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc564105cc1---nobukenalipumu.pdfIn PDF document text
    • http://topclinique.ma/kcfinder/upload/files/45590759267.pdfIn PDF document text
    • https://doanhnghiepvietnam.niengiamdoanhnghiep.vn/img_duhoc/files/furavo.pdfIn PDF document text
    • http://jcmb.gris-de-payne.fr/app/webroot/kcfinder/files/22905637123.pdfIn PDF document text
    • https://jasz-pap.hu/UserFiles/file/82079263002.pdfIn PDF document text
    • http://otestmanager.org/club/data/userfiles/file/20220204180116.pdfIn PDF document text
    • https://hn-as.com/sites/default/files/userfiles/file/8901783718.pdfIn PDF document text
    • https://tivirtual.com/userfiles/file/sutesivafi.pdfIn PDF document text
    • https://aydinhirdavat.com/panel/kcfinder/upload/files/norawe.pdfIn PDF document text
    • http://synergytaekwondo.com/click2buy_newp/userfiles/file/kokuluxuliwuta.pdfIn PDF document text
    • http://ildongwire.com/userfiles/file/nufexemekaluwalutanep.pdfIn PDF document text
    • https://bandotrading.com/uploads/file/77835370622.pdfIn PDF document text
    • https://karmak-makina.com/upload/files/62847411793.pdfIn PDF document text
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/siremeki.pdfIn PDF document text
    • http://ventss.ru/userfiles/files/60725864882.pdfIn PDF document text
    • https://digiconelectronics.com/media/xekiwot.pdfIn PDF document text
    • http://www.rxeyewearonline.com/pics/dezazaseluzifobidozume.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/fejatobegejawibupixaka.pdfIn PDF document text
    • http://dagmar-e.de/userfiles/file/79748405676.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16210a084dcd12---80496483179.pdfIn PDF document text
    • http://beerskiboot.de/img/upload/file/9144046838.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/momamirepuziwoxodu.pdfIn PDF document text
    • https://0924055971.com/uploads/files/202203210849346407.pdfIn PDF document text
    • http://www.jo-hubert.fr/upload/files/20869872173.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/162319d931fadc---96329030814.pdfIn PDF document text
    • https://topclassgardening.nl/images/file/99983823242.pdfIn PDF document text
    • https://tdh-europe.org/files/files/88627247833.pdfIn PDF document text
    • http://bfr-bialapodlaska.pl/userfiles/file/wovosamimemikebawuputo.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=secured+party+creditor+pdfPDF 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_off00035164.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00035164.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35164 10584 bytes
SHA-256: 01bc568dc40d7bfeb53dd8af1147b23d6160dfc1e61fb0a533f26b5794a12888
font_01_sfnt_off000369c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x369C1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000380dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x380DC 16908 bytes
SHA-256: 6b42212a27546fa68e344b73117bf2db7d9af878d986f694a46787fc90e89484