Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c78aca0c15a15d…

MALICIOUS

PDF

249.7 KB Created: 2022-03-17 04:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: fd8271678bc24bdac1c10b8cea17596d SHA-1: fe22fc4380d7a8b2adae9c7e865902c8ce0065c3 SHA-256: a9c78aca0c15a15dfc9e4d67d70fa6f098b4f2264b1af1d7fdde259f1ae6a74b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

Heuristics 5

  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=normal+arterial+pressure+waveform PDF link annotation
    • http://bmcnx.com/userfiles/file/litidexexesodaka.pdfIn PDF document text
    • http://ayurvedabodycure.com/kcfinder/upload/files/magotak.pdfIn PDF document text
    • http://proart.by/media/file/14260507302.pdfIn PDF document text
    • http://rajicpetrol.rajic-intertrade.com/rajic/system/upload/file/46854850972.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/55049169165.pdfIn PDF document text
    • http://info56.ru/userfiles/file/gogal.pdfIn PDF document text
    • http://vibrobreaker.com/files/files/wetipusutaxebavumeluwojo.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/89241796055.pdfIn PDF document text
    • http://pointerboards.com/uploads/admin/files/naxomijimumamebupu.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/fetowivanubuwaxog.pdfIn PDF document text
    • https://braintreeclinics.com/app/webroot/img/files/dujowew.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/eeac2664b19d3409504cd84c37fe1671/41150977529.pdfIn PDF document text
    • http://yepuco.com/uploads/files/tatoxutimuzemurusiraroved.pdfIn PDF document text
    • http://kondicionery-fryazino.ru/upload_picture/file/66029981944.pdfIn PDF document text
    • http://thedewakohchang.com/image/upload/File/5210558186.pdfIn PDF document text
    • https://99shayari.in/userfiles/files/wometotanebedito.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/fonivosakutazipadux.pdfIn PDF document text
    • http://kaoli88.com/upload_fck/file/2022-2-24/20220224025151158897.pdfIn PDF document text
    • http://marthomaiticherukole.com/userfiles/file/21420682095.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216d78c6d971---lufovabe.pdfIn PDF document text
    • http://guidesdugrandlarge.fr/images/import/file/wibexuru.pdfIn PDF document text
    • http://privateeducation.sg/verzsape/demo/upload/admin/files/worofulatilovut.pdfIn PDF document text
    • https://felicityokolo.com/file/rirubejopugotulaj.pdfIn PDF document text
    • http://fornacedelia.it/userfiles/files/55282464843.pdfIn PDF document text
    • http://rtm-plus.com/ckfinder/userfiles/files/xubem.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/87522824772.pdfIn PDF document text
    • http://sanfrancescovet.com/userfiles/files/pamojinofijorefi.pdfIn PDF document text
    • http://atenngo.com/admin/sites/site/documents/kowibafesedukeba.pdfIn PDF document text
    • http://abogarestudio.com/userfiles/file/34627315795.pdfIn PDF document text
    • http://konyaozgunmobilya.com/userfiles/file/rewevuvonurepuxopiken.pdfIn PDF document text
    • http://paroisse.stgilduin.fr/files/jubuzetilowup.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/e4a5b4126149272704ba1e3202af7fd1/36735214142.pdfIn PDF document text
    • http://drtamerturan.com/file/lagaxojumanibofup.pdfIn PDF document text
    • http://kirilmazbardak.com/userfiles/file/2391839585.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_off00037ba1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00037ba1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37BA1 17132 bytes
SHA-256: d4d73197d371d42716903fd4c5270a8b8d6d2eb4468f4cb8c5e0f7f82d69fe28
font_01_sfnt_off0003a7c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A7C8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003bee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BEE8 10644 bytes
SHA-256: 29aa49902b6afd308fe92719070b3eae6061a73e0871f7d64f4d4edd2bba5b45