Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7d39e1943dd348…

MALICIOUS

PDF

290.0 KB Created: 2022-02-04 18:56:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 9f9987deeb88f9b83a69e39a3642986d SHA-1: 12c0cf9976350e9e7412c802a0e9cb5d857cbe05 SHA-256: cd7d39e1943dd348e859768c1c32a7313b0b21f53c56b8a80829d94a21e46735
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7513

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://yoyep.co.za/XSRYdR1H?utm_term=betternet+pro+apk+2019 PDF link annotation
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/adec0368de1cd7332b060d9c9e9d546a/64073332830.pdfIn PDF document text
    • https://3redsquares.com/phpsites/vertical_living/uploads/file/77418065730.pdfIn PDF document text
    • http://gattoneva.pl/pages/userfiles/file/8625147092.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161818e5f697f0---xadirezisolojo.pdfIn PDF document text
    • http://brkvinc.com/userfiles/file/39336843773.pdfIn PDF document text
    • http://le383.com/uploads/files/kaxexafugibumuvuliwi.pdfIn PDF document text
    • http://reichspfarrer.sk/file/34445952960.pdfIn PDF document text
    • https://fanaf.org/article_ressources/file/vidiribopozoborovonexeru.pdfIn PDF document text
    • https://www.gurgy.net/ckfinder/userfiles/files/98729696267.pdfIn PDF document text
    • http://actlogistic.vn/upload/editor/files/bubipoxegikovotavuf.pdfIn PDF document text
    • http://bep-au.theonejsc.com/userfiles/file/rujibew.pdfIn PDF document text
    • http://architettoletiziamasciotta.eu/userfiles/files/47966722983.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/pupaxivotetakelo.pdfIn PDF document text
    • http://alidongdong.coco1490.com/upload/file_folder/file/23264583349.pdfIn PDF document text
    • https://anup.bo/images/files/488827314.pdfIn PDF document text
    • http://samtekelektrik.com/files/37916997889.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/45368504813.pdfIn PDF document text
    • http://reklamavysocina.cz/UserFiles/File/49506302760.pdfIn PDF document text
    • http://oa30us.com/userfiles/file/55092499137.pdfIn PDF document text
    • https://supportsurgical.com.br/assets/kcfinder/upload/files/39520954816.pdfIn PDF document text
    • https://laval.gatr.ca/img/etablissements/files/12954506205.pdfIn PDF document text
    • http://jezirka-biobazeny.cz/UserFiles/File/kegatevusonor.pdfIn PDF document text
    • http://feach.ie/images/uploads/file/33216753606.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/161abf737bdee5---zavazobexogofidipuvow.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/98366782071.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/86484631528.pdfIn PDF document text
    • https://etadelloro.it/images/file/dilinuvinovawolorew.pdfIn PDF document text
    • https://skyzoan.com/cake/beta/userfiles/file/zunajajanaxupesenerowid.pdfIn PDF document text
    • http://chinhlytailieuluutru.com/media/ftp/file/74754344095.pdfIn PDF document text
    • http://lidata.eu/files/xepodetesopemopu.pdfIn PDF document text
    • http://winterwonderlandzundert.nl/uploadimages/files/69948031051.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/gatiponizotorizone.pdfIn PDF document text
    • http://annassteen.com/ckfinder/userfiles/files/vopekoburidemumuvab.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_off00041c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C48 17100 bytes
SHA-256: 848291b13b3c331fce2c4aebe944f1af94d334a88a068f0426638745c950d390
font_01_sfnt_off0004493d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4493D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004605d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4605D 10544 bytes
SHA-256: 275f9550c8654b9c5bab4b934a74729c14f7c83372c630d789c8b94f7cd25708