Malicious PDF — malware analysis report

Static analysis result for SHA-256 55058bcf6a388365…

MALICIOUS

PDF

46.8 KB Created: 2020-10-31 16:09:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: 246082850374a72af1c1deae53affd74 SHA-1: 5d3da1b5b6c3de6e749a7685b1232922b475e714 SHA-256: 55058bcf6a388365ec75a08f8a2328458ca5c5583c06437025171d230be6ac30
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/wb?keyword=bronchiolitis%20obliterans%20pdf In PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/sizalumevowabodum.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/wuloxajike-mudubu-bapapeluretunij-weleg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418786/normal_5f9a03b1d0516.pdfIn PDF document text
    • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/kixogepekovip_kevipomerawo_lumeg.pdfIn PDF document text
    • https://kavivapepegag.weebly.com/uploads/1/3/4/2/134235540/127222.pdfIn PDF document text
    • https://tufelovewojamex.weebly.com/uploads/1/3/4/3/134331554/sowemelad.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/39026286608.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/gupawujuxuj.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/rakajel_lozezuweb_denotisetiru.pdfIn PDF document text
    • https://katolafafesol.weebly.com/uploads/1/3/4/4/134479470/cbd65659ec9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f90abb74b29f.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000077ee.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000077ee.bin)
    • https://uploads.strikinglycdn.com/files/eb55cdf1-bc14-417f-9aa5-c3107c46d311/98924559917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec889c2f-5b06-4a62-beb5-2b192d5f8439/survival_analysis_techniques_for_censored_and_truncated_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9699/0115/files/bilevoxotowepuxejemisa.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 extracted file (font_00_sfnt_off000077ee.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EE 5432 bytes
SHA-256: 50fa9451bdf44b25878c80c2793ae96cf6c19d8e35fa8d99a6ca6d69b7ac614a
font_01_sfnt_off00008a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A62 10580 bytes
SHA-256: a730dbc79e62192cfa456c9df8beedca5a7e3567773de6c15db8198c2fdfe269

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