Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6500c52555bdba…

MALICIOUS

PDF

212.1 KB Created: 2022-03-11 18:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 1b2664e2a5c81d9b978c9734558dfe9d SHA-1: 80899779eec28af4a07b6a19f3f031e108257bcb SHA-256: ca6500c52555bdba3e1839843805b819b94f20fa0adc32d7a3245fc1ca72e753
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8151

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://yubit.co.za/XSRYdR1H?utm_term=inverse+functions+worksheet+with+solutions PDF link annotation
    • http://bckvalumni.org/userfiles/file/xunagizetoweg.pdfIn PDF document text
    • https://wyslijpaczki.pl/app/webroot/files/userfiles/file/bogenuv.pdfIn PDF document text
    • http://zhatuogz.com/uploadfile/file/pasimakesomulozaravositus.pdfIn PDF document text
    • https://xylemleads.com/userfiles/file/benelodifosorow.pdfIn PDF document text
    • https://tourbusan.net/FileData/ckfinder/files/20220301_4C276196C55371B6.pdfIn PDF document text
    • http://havefuntogether.com/image/upload/File/bufosudeviwubobis.pdfIn PDF document text
    • http://kartoniki.hurtubezpieczen.pl/userfiles/93695229344.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/lukerisaxaj.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/zatujixaku.pdfIn PDF document text
    • http://muralsdecoracio.com/ckeditor/kcfinder/upload/files/31785891629.pdfIn PDF document text
    • http://qzmrmfhyxh.com/upload/file/nugurofemoputotanux.pdfIn PDF document text
    • http://miydz.com/mingyi/images/userfiles/file/fomufavojasotisunovilenu.pdfIn PDF document text
    • https://roundtable106trust.org/admin/uploads/file/wituvon.pdfIn PDF document text
    • http://yizhu580.com/ckfinder/userfiles/files/26826291409.pdfIn PDF document text
    • https://expomediainc.com/upload/file/dezogelelolovinajubimadut.pdfIn PDF document text
    • http://ww2.forte.com.pl/js/ckeditor/kcfinder/uploads/files/zovegiralifamexudu.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/7527983285.pdfIn PDF document text
    • http://scuderieverdina.it/scuderia/userfiles/file/tamoxesa.pdfIn PDF document text
    • https://latvanysport.hu/upload/files/86397463671.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/snr4duafbb37n97c72173j5hje/fezemaw.pdfIn PDF document text
    • https://forssah.co/userfiles/file/xowoxopu.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16213b895d47de---21950594537.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/56952143783.pdfIn PDF document text
    • http://firmykominkowe.pl/Obrazki/edytor/file/51027443033.pdfIn PDF document text
    • https://littleedupark.com/ckfinder/userfiles/files/nuririgiwis.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/7721278325.pdfIn PDF document text
    • http://airholic.com/UpFiles/WebEditorFiles/file/novixizisawe.pdfIn PDF document text
    • http://www.gieskestukadoors.nl/ckfinder/files/files/60353300154.pdfIn PDF document text
    • https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/17155909156.pdfIn PDF document text
    • https://roarmysecurity.ro/mm/file/tonagoxusuluxapelosig.pdfIn PDF document text
    • http://sungwoneng.com/upfile_editor/2022/files/sevemod.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_off0002e487.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002e487.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E487 17400 bytes
SHA-256: d0c7c4a139a9bc134547c4f7e37c26ef94621cb713b476dd81dbe9cd300d7d8c
font_01_sfnt_off000311c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311C4 10568 bytes
SHA-256: eb06fadfdba6d9e0644e84889d8837c5f3845f0e94498f2bf083d25fa4954878
font_02_sfnt_off000329e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329E7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9