Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f671cca7a0dd125…

MALICIOUS

PDF

79.8 KB Created: 2022-04-08 18:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 421a6636028c4d66a3b1db296d151d38 SHA-1: efeee79185583975af704ea57eff8044322f4a39 SHA-256: 8f671cca7a0dd125128efbe9da73b464a6e063e730db01b098fe64f9087dfc28
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://norin.co.za/YmrXLWy8?keyword=webasto%20diesel%20heater%20fitting PDF link annotation
    • https://sugulidan.weebly.com/uploads/1/3/4/5/134508933/8673925.pdfIn PDF document text
    • http://qqwandai.com/uploadfile/file/27722909012.pdfIn PDF document text
    • https://sutisivanopazar.weebly.com/uploads/1/3/4/3/134310164/7adad7f586.pdfIn PDF document text
    • https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/76954290526.pdfIn PDF document text
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/8676865.pdfIn PDF document text
    • https://tivufele.weebly.com/uploads/1/3/4/6/134615601/457565.pdfIn PDF document text
    • https://zoxaminajoge.weebly.com/uploads/1/3/1/6/131637873/razezuxubirux.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/98644889771.pdfIn PDF document text
    • https://pixipesigogod.weebly.com/uploads/1/3/4/3/134370637/taduwuf.pdfIn PDF document text
    • https://xavelimati.weebly.com/uploads/1/3/5/2/135298033/2bcd38e8ba.pdfIn PDF document text
    • https://kavesitifur.weebly.com/uploads/1/3/7/5/137501746/2288169.pdfIn PDF document text
    • https://ratemalopez.weebly.com/uploads/1/3/4/7/134753477/98057c0.pdfIn PDF document text
    • https://jesetediramu.weebly.com/uploads/1/4/1/2/141260372/8734562.pdfIn PDF document text
    • https://zizudenavoxe.weebly.com/uploads/1/3/4/0/134017195/rujokekenowaxaxitito.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/jegidizoz.pdfIn PDF document text
    • https://bazojosazim.weebly.com/uploads/1/3/6/0/136086377/mesiwubefa_xoviwup_gowara.pdfIn PDF document text
    • https://fofelopuvamugav.weebly.com/uploads/1/3/4/7/134716477/c3ca624e84db.pdfIn PDF document text
    • https://kusumuwuwudes.weebly.com/uploads/1/3/4/3/134338751/zavam.pdfIn PDF document text
    • http://raiz.jp/kcfinder/upload/files/sewugiboxusevofezodeju.pdfIn PDF document text
    • https://lrsinc.co/userfiles/file/wipadezukidowini.pdfIn PDF document text
    • https://mebemawadaj.weebly.com/uploads/1/3/5/2/135295691/femel_bakaxojarisel.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/pomiv.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/7ec1cea71e87.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_off0000d394.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d394.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD394 10764 bytes
SHA-256: 135073cc66aa45a7e978ef0c7d2e29009dd555024b49b7ec2a75a7b52a239686
font_01_sfnt_off0000ec1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001042d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1042D 17456 bytes
SHA-256: fdda9c5adf6ec4b079a18b552380f489944117b7ae8c6dc1b57b44b457e034f2