Malicious PDF — malware analysis report

Static analysis result for SHA-256 726c3c05b4186b57…

MALICIOUS

PDF

441.2 KB Created: 2022-03-06 20:17:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: 8b8355e0e2777591c1e5aa289ee929b3 SHA-1: a5e457f9c52ea9daff349c1d42c9bb020af98f92 SHA-256: 726c3c05b4186b57e1d703e8b4951dfca5eccf3930e16ea46f6c2451770cf81e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5781

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://xn--80aujdnb8a.xn--p1ai/kcfinder/upload/files/3354166037.pdf In PDF document text
    • http://sanalights.com/admin/admin/uploadfiles/file/30332846768.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1621d6a9ea7853---21064778665.pdfIn PDF document text
    • http://online-editor.menu-card-maker.com/uploads/files/47889611631.pdfIn PDF document text
    • http://stelmart.ru/userfiles/file/lagusogilutumimuwa.pdfIn PDF document text
    • http://mdtrend.hu/files/file/50572045176.pdfIn PDF document text
    • http://artkulinaria.pl/sites/default/files/file/33987409045.pdfIn PDF document text
    • http://tdvld.ru/sites/default/files/file/sodufegale.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16220ecd756d68---93587743914.pdfIn PDF document text
    • http://juha.be/_files/file/pipikajigilojibobud.pdfIn PDF document text
    • http://rezervacie.ambio.sk/user_files/files/8858075179.pdfIn PDF document text
    • https://grandplaza.bg/uploads/assets/file/46113924870.pdfIn PDF document text
    • https://cvsc.co/userfiles/file/7511329107.pdfIn PDF document text
    • https://ziyang100.com/userfiles/file/art_16437145015318.pdfIn PDF document text
    • http://pharmorgsyn.com/upload/files/daxowefesisafaki.pdfIn PDF document text
    • http://www.razitka-conti-trodat.cz/kcfinder/upload/files/81728820175.pdfIn PDF document text
    • http://levotst.com/uploads/files/vipanunim.pdfIn PDF document text
    • http://stylingstories.nl/kcfinder/upload/files/vobejuvovugafoxetodikub.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/77248432874.pdfIn PDF document text
    • http://alanaf.ru/userfiles/files/55943602603.pdfIn PDF document text
    • http://klimafertotlenites.hu/kcfinder/upload/files/85200817896.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16215deaf2572b---12494345705.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fe48228dd6b---futiwawopelirejexitepig.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211dc2ac1965---91487284022.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/b449d731504f134d644c7bbc1e7321b2/73658443956.pdfIn PDF document text
    • http://viaecommerce.com.br/kcfinder/upload/files/xizijonipimomexabuvanena.pdfIn PDF document text
    • https://tekstilkent.formenemlak.com/upload/ckfinder/files/56191074989.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=krishna+janmashtami+bhajan+video+songPDF 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_off000672ab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000672ab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000672ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672AB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000689cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689CB 10976 bytes
SHA-256: a482fde141841ec6da5bd2f5edc76c677d299f8382b6b7f36d1f256954c36769
font_02_sfnt_off0006a2d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2D6 19184 bytes
SHA-256: 1ac58549b97bb391b48ec8ff24b3aee4527fef3bd4466f53370a4ac1e41980a6