Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8761b6358db5f00…

MALICIOUS

PDF

80.7 KB Created: 2022-03-31 20:58:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 8b69bcc55591e528e619490fb5790ea3 SHA-1: fc7d74561be63042f2246138b5b6193b3b2d0f09 SHA-256: f8761b6358db5f00a4fe2c50e860d481d4b6a4fafdf5b2e9a655ebfb982032db
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://fecuq.co.za/YmrXLWy8?keyword=traduccion%20de%20espa%C3%B1ol%20a%20ingles%20gratis%20en%20linea PDF link annotation
    • https://livuwijonirib.weebly.com/uploads/1/3/4/7/134732661/vunazowavimumigok.pdfIn PDF document text
    • https://pozagazekoz.weebly.com/uploads/1/4/1/2/141251227/7245408.pdfIn PDF document text
    • https://gaxasexafarud.weebly.com/uploads/1/3/4/5/134590452/ba603cf7.pdfIn PDF document text
    • http://gyndoktors.de/ckfinder/userfiles/files/26525252959.pdfIn PDF document text
    • http://funkyspa.net/ckfinder/userfiles/files/fanomilebuwilifazipopig.pdfIn PDF document text
    • https://xuxixoxeniti.weebly.com/uploads/1/3/4/5/134585484/1968db4a75b8.pdfIn PDF document text
    • https://voranafirodibug.weebly.com/uploads/1/3/2/6/132696030/koniwikelowurezegi.pdfIn PDF document text
    • https://kutawujotin.weebly.com/uploads/1/3/4/0/134016956/3095178.pdfIn PDF document text
    • https://rosaguvedofim.weebly.com/uploads/1/3/4/3/134352906/lubumuniripew_zadox_xeparebip_tekogusoso.pdfIn PDF document text
    • http://free-note.kr/files/fckeditor/file/648681164621336ce9c515.pdfIn PDF document text
    • https://sotokogel.weebly.com/uploads/1/3/4/2/134266154/2334bd786e1a25b.pdfIn PDF document text
    • https://zoxofaduw.weebly.com/uploads/1/3/2/6/132683138/2107310.pdfIn PDF document text
    • http://medicapoland.pl/uploaded/file/welegufuxufi.pdfIn PDF document text
    • https://xakewalite.weebly.com/uploads/1/3/4/8/134882175/vogozeramo.pdfIn PDF document text
    • https://gobadelo.weebly.com/uploads/1/3/4/5/134594664/01d3f49c6be201a.pdfIn PDF document text
    • https://padabomax.weebly.com/uploads/1/3/4/6/134681696/7e8048039cf85.pdfIn PDF document text
    • https://wuraruxirike.weebly.com/uploads/1/3/1/4/131453605/parepomijo.pdfIn PDF document text
    • https://kesakoti.weebly.com/uploads/1/3/1/0/131070149/67e2ce631dd.pdfIn PDF document text
    • https://nobixotozuf.weebly.com/uploads/1/3/4/4/134472493/rudowurogonilojaju.pdfIn PDF document text
    • https://zudizobi.weebly.com/uploads/1/3/4/8/134860565/b607f.pdfIn PDF document text
    • https://dewotime.weebly.com/uploads/1/3/1/6/131606762/0dfa7.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_off0000d0e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E7 18648 bytes
SHA-256: da2faf5eec8b5330457e65b2c13a769cbc7b4908cd7a5cfefae4164ec73c6f56
font_01_sfnt_off000100ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000118e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E5 10960 bytes
SHA-256: f0d65ce578772561644be81c723a7072f33ec45b084db2c9e6373cac43c67dc8

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