Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e23743368c240c…

MALICIOUS

PDF

41.3 KB Created: 2020-10-15 12:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 36d8bdfa80506a3fbc1409710b8ac46f SHA-1: f5e831e700325dadc366eedf6269c7b100a58ec4 SHA-256: d3e23743368c240c4e979f078ce507737ed4e577ce4e81d91408c0ca5ff0e5bf
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://ggtraff.ru/wb?keyword=zelda%20twilight%20princess%20gamecube%20iso%20espa%C3%B1ol In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5f87c271bdf03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369797/normal_5f87dc6067038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f878591d8121.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5f871e595312a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367624/normal_5f876c1b0d1c5.pdfIn PDF document text
    • https://site-1042607.mozfiles.com/files/1042607/lejoxinigemom.pdfIn PDF document text
    • https://site-1038519.mozfiles.com/files/1038519/16739127474.pdfIn PDF document text
    • https://site-1039617.mozfiles.com/files/1039617/kozapelikefepez.pdfIn PDF document text
    • https://site-1039787.mozfiles.com/files/1039787/30709431852.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f871d018347e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_5f875333e29c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f87019da1557.pdfIn PDF document text
    • https://site-1037152.mozfiles.com/files/1037152/silubafaxobimidasijixivev.pdfIn PDF document text
    • https://site-1040177.mozfiles.com/files/1040177/set_aspect_ratio_to_imageview_android.pdfIn PDF document text
    • https://site-1041184.mozfiles.com/files/1041184/zagiwokogagukoxovedinis.pdfIn PDF document text
    • https://site-1037885.mozfiles.com/files/1037885/2658326010.pdfIn PDF document text
    • https://site-1038578.mozfiles.com/files/1038578/tuzofeno.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/126930.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/tapixubunimawogesi.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/vopovajibupoti-goxufomef-rufijagotebi-susukeveribu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5131 5772 bytes
SHA-256: 4495d44a176082f8e75a953022e9684725f3b881da04e1550b45edef6ff4e041
font_01_sfnt_off0000645e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645E 10660 bytes
SHA-256: 123b1fd2f303be8b32b7542b8826fd4f68017c005c88b413e0205308405b4a7e
font_02_sfnt_off00008736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8736 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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