Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3eba777c649a2e2…

MALICIOUS

PDF

79.3 KB Created: 2021-09-07 04:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 912c73879a239f9a3d1df7ac2935369c SHA-1: 5997764a55b390cd43587243c5f094b2b5a6564f SHA-256: d3eba777c649a2e28e6854af8f5a45a69d607a1b96a350bdc322e7f195c4a18b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/2ikdddqk3bt6f8r9nbijp4g6r6/zuboves.pdf In PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f69e7ebde95---35665387697.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/b3517b3cb76d93ff8bd387cea49c1e5b/zulojozefabo.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160985bbf3b8fc---wegisegexisumubetudufew.pdfIn PDF document text
    • https://gsm.company/ckfinder/userfiles/files/4280013991.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210628_F86C834CEDCAD6CA.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8caadd0d4b---64951376332.pdfIn PDF document text
    • https://szekszardportal.hu/userfiles/file/87696737111.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b164fad28df---deronuvux.pdfIn PDF document text
    • https://mimpiindah1.com/contents//files/24402843675.pdfIn PDF document text
    • https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/32885676484.pdfIn PDF document text
    • http://wjvanderheidedienstverlening.nl/uploads/file/36142084406.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/rezowu.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160fbf243e5395---tuvujukaranof.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/vepavetepagosivo.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/mawunogakuwojakanojopiba.pdfIn PDF document text
    • https://ppuhperspektywa.pl/files/edytor/file/jonadakimuvi.pdfIn PDF document text
    • http://quiltingacademy.info/fckeditor/userfiles/file/46283805350.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/5790acb7279ac11edc08f5e255a62e8d/134641302.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a47ebe3d57---19842612787.pdfIn PDF document text
    • https://istocdukkan.com/userfiles/files/gurojebifeluwufasepimijo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=cities+of+sigmar+warscrolls+pdfPDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/f3e68bb51335f9ede3753f1056879d04/80402473790.pdfIn PDF document text
    • http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/47081577574.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ed05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED05 16260 bytes
SHA-256: cb9a4bb872878b417d22bcbcd89a3d4548e2ddbab1947988c4543ef972425e7b
font_02_sfnt_off0001162e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1162E 10976 bytes
SHA-256: 6001e056fcb2762a3b33053fcd3f869ff9e47ecc1aacd7c07120d999e6d152b1