Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86e1425c3612b9…

MALICIOUS

PDF

49.3 KB Created: 2020-10-25 09:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 0c5e01cf531f71e3e2e3834b8559d567 SHA-1: 21bd5ea2e4fae5c9a887e756c88e374fa693ec04 SHA-256: 5d86e1425c3612b969e4bb596cff42698ba07131422a5e772fe00bd78dbbc9c3
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/wb?keyword=lg%20oled55b8stb%20manual In PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/kozasoj-gapuro-zuwidaru.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/6706996.pdfIn PDF document text
    • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/zawefunigat.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kekikefuwu.pdfIn PDF document text
    • https://xefosujusiro.weebly.com/uploads/1/3/4/0/134042031/pezajaruna.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/c62564350.pdfIn PDF document text
    • https://vunisanelebori.weebly.com/uploads/1/3/3/9/133999195/zubowe-rufebixikigur.pdfIn PDF document text
    • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/1c4d0.pdfIn PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/latapamefaw_zedagu_soxeti_jufex.pdfIn PDF document text
    • https://defifipak.weebly.com/uploads/1/3/4/4/134442047/5792609.pdfIn PDF document text
    • https://jezafemobad.weebly.com/uploads/1/3/1/3/131383748/kupalel_mivisesa_tinudosaw.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/90dddf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f8e2fa784d19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373502/normal_5f912f0cb585c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366664/normal_5f94979ee8c84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386089/normal_5f94b0b697abc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/60337cad-98ba-4c35-b79d-9d077f989a84/dorivubudizux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edc112f5-951e-49f0-8a5a-467603e99b68/97868021443.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a663338e-4289-41a5-8909-65f9165c93da/62825973738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/228338cc-c895-489a-8ca7-8af48020121a/movagatuxujixuguxeveviv.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8176 5448 bytes
SHA-256: 9c09bfa384c1c2b7c004f6535530c0719c068d5ca3463c4be2bf777769072deb
font_01_sfnt_off000093ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93EF 10652 bytes
SHA-256: 51649a4cd47280f34204f99c1a72fa3a59fdbf4bd0d4036912591beedf168633

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