Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8e1fefbbd5b2da…

MALICIOUS

PDF

336.6 KB Created: 2022-02-09 22:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 85b3cc7d98dc9ef9b96b44bd9d167795 SHA-1: 03c188b400a4b796c02803ba15bcf1c77290f689 SHA-256: 5d8e1fefbbd5b2da16a1b00149ab3bba1fc68b8e7720756404ddd8ee33ba0513
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8289

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://colod.co.za/XSRYdR1H?utm_term=tamil+wedding+anniversary+video+song PDF link annotation
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2f79728bfc.pdfIn PDF document text
    • https://nanyangtextile.com/userfiles/file/kujup.pdfIn PDF document text
    • http://gevenschoenen.nl/ckfinder/userfiles/files/69394362627.pdfIn PDF document text
    • https://shreeaksharinternational.com/webroot/img/userfiles/files/51538523602.pdfIn PDF document text
    • http://phunphu.com/userfiles/file/puwutemikaxolo.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/2abbdd7ccfdb555497bcaac61352c8f6/10510466103.pdfIn PDF document text
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161bae5aa90d0c---21182314853.pdfIn PDF document text
    • http://patrickstaxi.fr/userfiles/file/disiximesaxunopivida.pdfIn PDF document text
    • http://auto-berles.oldalunk.hu/userimages/files/vufaxelikupaximipawuvetug.pdfIn PDF document text
    • http://carrasvilla.es/uploads/files/60659472417.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f2d88534f6f---5370657651.pdfIn PDF document text
    • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/39064589448.pdfIn PDF document text
    • http://montazenabytkupraha.cz/files/file/49393092946.pdfIn PDF document text
    • https://ta-taiwan.com/app/webroot/userfiles/files/toxakurejetevebugodamiw.pdfIn PDF document text
    • https://ww150002.linebot.net/upfile/files/20211110105014.pdfIn PDF document text
    • http://stylingstories.nl/kcfinder/upload/files/duferixamubovo.pdfIn PDF document text
    • http://mediasingrid.com/js/new/fckeditor/userfiles/file/wanibegiromalilugodil.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/161c352d1757d6---jawenepaxaxapogofu.pdfIn PDF document text
    • https://www.adoz.cz/ckfinder/userfiles/files/742829062.pdfIn PDF document text
    • http://hrdiborice.cz/erucom1/files/files/98262459579.pdfIn PDF document text
    • http://fulepmark.hu/nyebu/fulepmark/userfiles/file/fovoxotis.pdfIn PDF document text
    • http://travelshops.pl/userfiles/file/sizazisilizoz.pdfIn PDF document text
    • http://apexibd.com/uploads/fck_uploads/file/kifubozewugef.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_off0004d66f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D66F 18188 bytes
SHA-256: bad7e5e34155fb531a2a22d451c0683d0ff2bdc28368a176d8dee41405643b8b
font_01_sfnt_off000504d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x504D9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51BF9 10720 bytes
SHA-256: 00d090a751f3c482efe8a4303a9f4408a6ab3d18add83589df942ca21c400bcc