Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca66ba9c30d9c191…

MALICIOUS

PDF

235.6 KB Created: 2022-03-12 18:06:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 652a461bb881b54142158835e7910774 SHA-1: 273d5e2405953b647fd693655cf5439bae245948 SHA-256: ca66ba9c30d9c1911b82d9305d34ddd08b460cbb0299c18299db38c507516c37
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8270

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://tevav.co.za/XSRYdR1H?utm_term=carbonic+acid+solubility+chloroform PDF link annotation
    • http://catmo.fr/kcfinder/upload/files/40891315719.pdfIn PDF document text
    • http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/wewodow.pdfIn PDF document text
    • http://mtrendgroup.com/MTrendGroup/uploadfile/fck/file/38322349988.pdfIn PDF document text
    • http://primesystem.kz/app/webroot/js/kcfinder/upload/files/66723188482.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/41578078979.pdfIn PDF document text
    • https://1000fdep.talenzsoftware.fr/upload/files/37547090331.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1621f97bbefbbc---5303707948.pdfIn PDF document text
    • http://krcatikyonetimi.com/userfiles/file/4068321172.pdfIn PDF document text
    • http://www.alcera.ca/userfiles/file/watajuninulu.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/wamututudimuf.pdfIn PDF document text
    • https://firstrecycler.oltenia-imobiliare.ro/userfiles/file/30132763570.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/65696867945.pdfIn PDF document text
    • http://www.wiz-fac.com/uploadImg/file/26490540196.pdfIn PDF document text
    • http://ranchobg.com/img/file/sogasuvelez.pdfIn PDF document text
    • http://vako.vn/app/webroot/uploads/files/95497950541.pdfIn PDF document text
    • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/bofabuboteperim.pdfIn PDF document text
    • http://beiks.info/public/file/dodifep.pdfIn PDF document text
    • http://nhatrangpalace.net/app/webroot/upload/files/zosanu.pdfIn PDF document text
    • http://administratieindex.nl/images/uploads/fogazi.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202224_15043_455.pdfIn PDF document text
    • http://autodilykanka.cz/cmsimple/images/file/36243113517.pdfIn PDF document text
    • https://hainescentreasia.com/images/file/49242422180.pdfIn PDF document text
    • https://elemental-ia.com/userfiles/file/34586513054.pdfIn PDF document text
    • https://searchkar.com/ci/userfiles/files/kiverupaxikopavebu.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/jubirazuzi.pdfIn PDF document text
    • https://www.kpglearningbox.com/assets/kcfinder/upload/files/sajisaxil.pdfIn PDF document text
    • https://www.adira.co.id/assets/kcfinder/upload/files/soxugevopevivipubap.pdfIn PDF document text
    • https://areopag.ru/sites/default/files/uploads/tawekesalidif.pdfIn PDF document text
    • http://gruppocinofilomarsalese.com/userfiles/files/buxumamuperarilinexofosuz.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/39232207105.pdfIn PDF document text
    • https://eletmodguru.hu/files/files/rozepejukegum.pdfIn PDF document text
    • https://allianztc.ro/files/file/xanakagigobusa.pdfIn PDF document text
    • https://cicimanis.com/contents/files/64079278602.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_off00033fa0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00033fa0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00033fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33FA0 17868 bytes
SHA-256: 1c1c7d79ed27e77fdea644df5b49dd61a21dbcdd4587248225e390439f2acf55
font_01_sfnt_off00036e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36E74 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00038594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38594 10992 bytes
SHA-256: 9a63d481dfe2e3465b2a165d45153da7d19aca36a1ab6112913235c951e52fd6