Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8785c4a27e15a3b…

MALICIOUS

PDF

365.2 KB Created: 2022-03-29 11:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: f780844ef495ae43fbd4a6205ab36b94 SHA-1: 177be5de72a6237ed9914b272f5ab7bc55266e44 SHA-256: f8785c4a27e15a3bf8098b85fa0a045076ed710453ea04d7d8d50d867aa5e069
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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://yubit.co.za/XSRYdR1H?utm_term=smackdown+2010+oyunu+indir PDF link annotation
    • http://motolargo.pl/userfiles/file/pudezefod.pdfIn PDF document text
    • http://www.cerradurasytornillos.com/gdc/kcfinder/upload/files/75929161715.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205182cbe4b8---89475394757.pdfIn PDF document text
    • https://fxafidelite.megazone-reims.com/userfiles/file/91377790405.pdfIn PDF document text
    • http://mytrangroup.com/uploads/userfiles/file/98813595471.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/23398556379.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/zosoloxevalusubuzadumaboz.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203e29f3f2db---21131397054.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622048efcc7c2---42813422817.pdfIn PDF document text
    • https://brianhigbielaw.com/UserFiles/file/43208439846.pdfIn PDF document text
    • https://powiedzdoktorze.pl/file/files/16156998328.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/vozokimepojixopadosomeku.pdfIn PDF document text
    • http://manchesternh298.org/kcfinder/upload/files/94314561970.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1621149c1382da---zomigevazesexujolu.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/ff872a60468e7806660efddb84c40f3f/59521157284.pdfIn PDF document text
    • http://rendszerguru.hu/admin/kcfinder/upload/files/36761408345.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/89991376873.pdfIn PDF document text
    • https://esperidiaogomes.com/userfiles/files/vugunugesuwuf.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/23692230022.pdfIn PDF document text
    • http://trustycctv.com/ckfinder/userfiles/files/fifojulopinaruwavap.pdfIn PDF document text
    • https://lammensfilip.be/uploads/files/folekebofefarujidorij.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236d1f6c1973---tototixiragotanasefixo.pdfIn PDF document text
    • http://thanhtamgia.com/ckeditor/kcfinder/upload/files/6568510822.pdfIn PDF document text
    • http://studioprogettoarchitettura.eu/userfiles/files/wibukizezudigisaxijanodon.pdfIn PDF document text
    • https://alsharqcc.com/userfiles/files/zamemeni.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/fipikipuzerosuw.pdfIn PDF document text
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/03a005160a76853ffead0a4d77a3a772/82954041290.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_off00054236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54236 18952 bytes
SHA-256: 0bea1574f221b29c991313b56034d168282b610d101ae03062dcac6496b92619
font_01_sfnt_off0005748c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5748C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00058bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58BAC 10848 bytes
SHA-256: 69b1c1a1aea5fe1a754aac8ca6c77c72b05b639a9ccfee1d3ae2e568d7074d7f