Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b33a4a33d0804f…

MALICIOUS

PDF

426.5 KB Created: 2022-02-14 13:58:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 66cb513ffc1a722297d09742d3e16b55 SHA-1: f3ae5cc8f4540be879a00614e6c14a7eaa507acf SHA-256: 72b33a4a33d0804f3e47d94a6d08f8edd68f4d362c6ef1f37fcc3f6eda8d77df
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4607

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://lazav.co.za/XSRYdR1H?utm_term=a+basso+profundo+am+i+sheet+music PDF link annotation
    • http://madmojo.com/fckupload/file/80758524997.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619b16fd92f09---34723657590.pdfIn PDF document text
    • https://www.vita-organic.eu/admin/ckfinder/userfiles/files/20300930741.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613694f71fab4---dotezevetapeg.pdfIn PDF document text
    • http://alliance-ltd.com/userfiles/20086007153.pdfIn PDF document text
    • http://101eyewear.com/luutru/files/sonifezinifowopotodixemu.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/22692936402.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/33128631139.pdfIn PDF document text
    • http://www.jatekkalmesevel.hu/admin/ckeditor/kcfinder/upload/files/6405741397.pdfIn PDF document text
    • http://dmychadla.eu/UserFiles/File/risuzitiwunobufepewevi.pdfIn PDF document text
    • http://hnc2.com/userfiles/file/53435202122.pdfIn PDF document text
    • https://mrdak.cc/uploadfile/files/kegajamubat.pdfIn PDF document text
    • http://mayepnuocmia.vn/data/ckfinder/files/35920007619.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8bb4a6fc53e10bfb01e6dfdbb346474f/jorus.pdfIn PDF document text
    • https://ccichn.vn/data/upload/file/14223132808.pdfIn PDF document text
    • http://www.videobezopasnost.ru/ckfinder/userfiles/files/63726635810.pdfIn PDF document text
    • http://fatimaartwork.com/userfiles/file/tebojowarukuvimak.pdfIn PDF document text
    • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/verekapidomesemimolifisu.pdfIn PDF document text
    • http://shuswapfireandsafety.com/userfiles/file/vupefunivaruditigudobefi.pdfIn PDF document text
    • http://mjacz.cz/soubory/files/josumapumofigutuvud.pdfIn PDF document text
    • http://goldia.cz/data/file/vadole.pdfIn PDF document text
    • http://e-hematologica.pl/users/file/baselezi.pdfIn PDF document text
    • http://coquicart.com/ckeditor/ckfinder/core/connector/php/uploads/files/65179073240.pdfIn PDF document text
    • https://bdaudit.topham.ro/userfiles/file/webosomoki.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000612c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612C4 17800 bytes
SHA-256: 4a93ccb0f9e2dfa475f3689d5b32dff0ab69978efdf89a856eda38019d43eaad
font_01_sfnt_off00064195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64195 11060 bytes
SHA-256: 101696b4386d2b29545ec4f9e816fa4424ae89b5d0644b5a30b95df35f646b69
font_02_sfnt_off00065afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AFC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00067213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67213 13352 bytes
SHA-256: 66dbe36da1178b5eff0fe7bfc5823b01a6ef73a9eeefcb0eb5c2e37ac8a3ddcf