Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b25d33690aa825…

MALICIOUS

PDF

304.2 KB Created: 2022-03-21 10:05:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 703467e0917da2fb230bc8246bf1affe SHA-1: 53d8beb85b69b19699c190c600e949d8bf9116ec SHA-256: a8b25d33690aa825b2210bc94777c1fde48ca9061cfe6ac6423968381fda6a61
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8128

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://ragaz.co.za/XSRYdR1H?utm_term=anything+you+can+do+sheet+music+pdf+free PDF link annotation
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161f93f6ea1a32---toruvibugenuvadi.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/162137e76e61ce---xodekovawosaxikiviwuve.pdfIn PDF document text
    • http://mensagemcrista.com.br/ckfinder/userfiles/files/juvoluwajozenake.pdfIn PDF document text
    • https://www.soudeurs.com/libs/kcfinder/upload/files/sopovolofuzavoxubiwuxeb.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16235dacfacd84---53468834211.pdfIn PDF document text
    • https://lerangement.com/upload/editor/file/89477163174.pdfIn PDF document text
    • http://xinshifm.com/userfiles/file/37890854927.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/wanemibimuji.pdfIn PDF document text
    • http://sun-dr.com/uploads/files/202202171600442272.pdfIn PDF document text
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162000a5653e90---ruruki.pdfIn PDF document text
    • https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/97615921535.pdfIn PDF document text
    • http://obkladlazby.cz/userfiles/file/reboxufol.pdfIn PDF document text
    • http://manilag.com/FileData/ckfinder/files/20220310_6F0322593F1018A1.pdfIn PDF document text
    • https://merten-rozetki.su/kcfinder/upload/files/69433390585.pdfIn PDF document text
    • http://anindecor.pl/files/file/25699468870.pdfIn PDF document text
    • https://nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/verojigoxelimugej.pdfIn PDF document text
    • http://daming-school.com/userfiles/file/durogij.pdfIn PDF document text
    • http://letresorellebio.it/userfiles/files/wiwitefakinidofopa.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbb2a06bfc5---xopedeserogijobidusox.pdfIn PDF document text
    • https://mariellatriolo.it/public/file/37961862754.pdfIn PDF document text
    • http://forensique.com/app/webroot/kcfinder/upload/files/dujokamojepusajo.pdfIn PDF document text
    • http://meskyayin.com/dosyalar/File/tupufad.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_off0004522c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004522c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004522c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4522C 11216 bytes
SHA-256: 08d065c10edda6c5d3c5f289343e6172056a015a185a60a88f031f9e3b477353
font_01_sfnt_off00046c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C19 17880 bytes
SHA-256: 366d6e8fad899f41bfea80c3a8f2cc73b6cc1212e3401ccb6ad010f112c145bc
font_02_sfnt_off00049a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A77 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9