Malicious PDF — malware analysis report

Static analysis result for SHA-256 a599b04b5bc385eb…

MALICIOUS

PDF

39.7 KB Created: 2020-10-15 01:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7671093f479d6393b4c70be2862e0e24 SHA-1: 34c9fc9ff1973f097ac9e86531accb4c80bd9f3a SHA-256: a599b04b5bc385eb0e1f367b51234fdf4cf85ee7a469532562c6890ec35c7dee
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://gettraff.ru/123?keyword=descargar+pokemon+platino+randomizado+para+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f8771f1a1d47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f876abfd2559.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_5f8731bfce020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367644/normal_5f875beb2393f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366035/normal_5f87702bde252.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f87773f8abc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f877679e964e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8748a93c2d6.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3079835.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/1d44b872.pdfIn PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/ed707739ce643b.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/8486715.pdfIn PDF document text
    • https://site-1044106.mozfiles.com/files/1044106/39416656716.pdfIn PDF document text
    • https://site-1037187.mozfiles.com/files/1037187/jojup.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/bf4458.pdfIn PDF document text
    • https://ridolagu.weebly.com/uploads/1/3/0/7/130775195/gojagativite.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/bibesekukemugedovofa.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://zuxuzesis.weebly.com/uploads/1/3/1/4/131438019/8047150.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/4a90eaba6.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/tikinapulusaf.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/5650151.pdfIn PDF document text
    • https://mogezisatizate.weebly.com/uploads/1/3/0/7/130775403/823057.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

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_off000059ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59ED 5504 bytes
SHA-256: f6ad990f8e50507e2f479bec956d5e4235a32a6eca6ea639e50cac11dd8a96a0
font_01_sfnt_off00006c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C94 11212 bytes
SHA-256: 6cd6db11b931b4072757b56850156fb79f6cabed062c66f7e1cb7bf87bb25745

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