Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c778af69547ac8…

MALICIOUS

PDF

279.9 KB Created: 2022-03-27 19:45:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: b4947466b79402be1bb5b8856963f8dc SHA-1: d6ce60d9d853cbfc0b3a483ca61a3b187cbfe37f SHA-256: 25c778af69547ac8a33514d3bca8fdf60a6e6025e033699d2f0e84d920e6de9d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

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://lazav.co.za/XSRYdR1H?utm_term=miller+levine+biology+powerpoints PDF link annotation
    • http://immodraft.nrw/images/architekten_agentur_images_/file/338590735.pdfIn PDF document text
    • http://muszosz.hu/_user/file/nojulevawagexunuburonep.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/82746415925.pdfIn PDF document text
    • http://fjzy18.com/image/uload/files/xubufewofeluxuke.pdfIn PDF document text
    • http://monteconsultants.com/image/upload/File/kujogaxe.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/60255225992.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/jujubiturorozinapufin.pdfIn PDF document text
    • http://tbff-bygg.se/img/files/jepemexesifopobus.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/21d6ed9a503c6066f06d7626ff0cfe75/73180799090.pdfIn PDF document text
    • https://transdeliveris.lt/userfiles/file/17851114230.pdfIn PDF document text
    • http://omegabg.net/media/ck/files/21357685633.pdfIn PDF document text
    • https://inmaabiladi.com/userfiles/files/61486451181.pdfIn PDF document text
    • http://www.frank-diagn.hu/userfiles/files/10948456835.pdfIn PDF document text
    • http://jin16888.com/userfiles/file/ledaxa.pdfIn PDF document text
    • http://unite-chem.com/upload/files/nupirasaserinivo.pdfIn PDF document text
    • http://bratislava.topenglish.sk/app/webroot/gallery/files/67783456752.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/69539316313.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20220313111246166.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16223188fe2933---dunafiruvekavaworoneb.pdfIn PDF document text
    • https://inprovitargentina.com/ckfinder/userfiles/files/20171616988.pdfIn PDF document text
    • http://myflora888.com/ck_files/files/ruratow.pdfIn PDF document text
    • http://fmi.lu/userfiles/files/guvatogejaxaneg.pdfIn PDF document text
    • https://insolite.lu/img/userfiles/files/zobogaxotezu.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16205b3cfa96ae---77977503464.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 extracted file (font_00_sfnt_off0003f12c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f12c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F12C 10664 bytes
SHA-256: 3cc3e6b95d1f8f06e1371ee83ea51cb1a15b4c6803bdafd2453e57b3977bb047
font_01_sfnt_off00040990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40990 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000420ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x420AB 18548 bytes
SHA-256: 72e176ba653f8c51f5d9ff7e10b27302bce802e2752ee52c643c9b045a809052