Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c61a1361853b5a…

MALICIOUS

PDF

331.0 KB Created: 2022-03-29 04:46:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: bbd5095afe626cf02db2067d1ab6bf5e SHA-1: e04505cccb4e654afc4979ef6f764794ddddd89b SHA-256: c0c61a1361853b5af8ecb0b74ea20bdfb1188c8c03175c7803a54f33b6efa5a5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/fovivedidepemekusido.pdf In PDF document text
    • http://primewritings.grand-essays.com/media/uploads/files/7190136907.pdfIn PDF document text
    • https://delcinfo.ru/img/files/files/83210270815.pdfIn PDF document text
    • http://eyescare.vn/app/webroot/upload/ckfinder/files/86166882358.pdfIn PDF document text
    • http://patronusalapitvany.hu/public_html/upload/1649472174.pdfIn PDF document text
    • http://inspeq.eu/public/files/96359864816.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/76480936529.pdfIn PDF document text
    • http://webmba.fr/client/logo/file/fekubi.pdfIn PDF document text
    • https://seerupit.dk/assens/file/7671950236.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/31170459799.pdfIn PDF document text
    • http://fteq.ru/files/file/kafasukivej.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/32103795964.pdfIn PDF document text
    • http://audiohrestomatiya.ru/content/file/jesakuxazumevumo.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/3545371977.pdfIn PDF document text
    • http://bud-med.eu/userfiles/file/libigawosefepu.pdfIn PDF document text
    • https://hargagila.com/uploads/image/files/japep.pdfIn PDF document text
    • https://grouperamo.sracine.info/upload/file/83188733128.pdfIn PDF document text
    • https://v-rshine.com/upload/images/files/94539920797.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe9768e34b2---vupozigodowagew.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/27227798363.pdfIn PDF document text
    • https://garmin1.ddbseven.cl/userfiles/file/lemazekozege.pdfIn PDF document text
    • https://easternresources.net/ckfinder/userfiles/files/lirukusabovifijamop.pdfIn PDF document text
    • http://berchmanskuwait.org/uploads/file/xugifidagomimevafelurof.pdfIn PDF document text
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/e6e8cc9ad9ed093ea0406949f7fd9cae/98943675261.pdfIn PDF document text
    • http://jcmb.gris-de-payne.fr/app/webroot/kcfinder/files/94806605455.pdfIn PDF document text
    • http://metafelix.it/userfiles/files/13024792775.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/028c118d561e213dcbeace446fd349ce/82381852436.pdfIn PDF document text
    • https://servingltda.com/userfiles/file/31491522153.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=violin+sight+reading+grade+4PDF link annotation
    • 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_off0004c1a4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c1a4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C1A4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004d8bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8BF 17004 bytes
SHA-256: 825b18858f14eb89325ef0e31f60d1e26d8a5df1a4be6ec03d7a628dc8952044
font_02_sfnt_off000504d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x504D1 10576 bytes
SHA-256: 5db5a13e805e43edec38ccc4d32155e7c83fa89ee2ce34e1536da0d7407e9843