Malicious PDF — malware analysis report

Static analysis result for SHA-256 bccf50e3d9f7e9fc…

MALICIOUS

PDF

40.2 KB Created: 2020-10-05 00:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-02
MD5: eba14b84937a94bcd8812b24575e31bb SHA-1: cdf35965b5d32deed98ad33763bdfb236e037cad SHA-256: bccf50e3d9f7e9fc1cb8ba73766ea44a7e09eb19e4b6a42d03699c611491c92e
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=ragtime+annie+guitar+tab+pdf In PDF document text
    • https://site-1036873.mozfiles.com/files/1036873/torepidopegugazi.pdfIn PDF document text
    • https://site-1037028.mozfiles.com/files/1037028/74077562045.pdfIn PDF document text
    • https://site-1038493.mozfiles.com/files/1038493/pepedobafug.pdfIn PDF document text
    • http://files.horizonspiritline.com/uploads/1/3/2/7/132741475/defanulifita_tazon_rinom.pdfIn PDF document text
    • http://wibaxezi.clutchnthrottleusa.com/uploads/1/3/1/4/131437462/0121058e982.pdfIn PDF document text
    • http://misig.antarestrakehners.com/uploads/1/3/0/7/130739343/pusiwobuv_junigiwupipufuz_ropodiselu.pdfIn PDF document text
    • http://files.mattforvt.com/uploads/1/3/1/1/131164440/a4bb7a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/navera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1396/2908/files/old_house_gardens_iris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4281/1289/files/43313181086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8654/4022/files/board_game_rulebook_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9930/files/scholar_class_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0799/4788/files/wedewemogud.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://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: australiannationalrabbitcouncil.com 4 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 5300 bytes
SHA-256: 33995f0e44c06f8d68a8c888260cbbfe771d4f20bc1d911fa459ef3c83a8438d
font_01_sfnt_off0000721f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721F 10000 bytes
SHA-256: 56e28a704d4dfaf72639c8569b6a88a57ef87b6b7f8d93702d5e165c3629f4ae