Malicious PDF — malware analysis report

Static analysis result for SHA-256 425c2f8b5e31b1b1…

MALICIOUS

PDF

66.6 KB Created: 2020-11-23 19:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: d8d9eb717208012d9f407dc3dcc8a20f SHA-1: 7c4a1830a841e125337a3038866850aba24aaca0 SHA-256: 425c2f8b5e31b1b1a013119c9eadc00bccd2413138ed803b5fd22685f9c9f2ef
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/strik?utm_term=superhero+bulking+program+pdf+download In PDF document text
    • https://kojepogezoxuta.weebly.com/uploads/1/3/4/4/134487575/vizofaxekuwemesesava.pdfIn PDF document text
    • https://penulikadima.weebly.com/uploads/1/3/1/4/131482887/2734f5d9.pdfIn PDF document text
    • https://texelepetorabaj.weebly.com/uploads/1/3/4/7/134738155/0391f306bd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408981/normal_5f9d6528b8913.pdfIn PDF document text
    • https://rifelejoxew.weebly.com/uploads/1/3/4/3/134330737/986b38ed2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454982/normal_5fbb8f2d5cc6a.pdfIn PDF document text
    • https://sirawomaperuli.weebly.com/uploads/1/3/1/3/131398091/f0196eedf.pdfIn PDF document text
    • https://safadusuxujex.weebly.com/uploads/1/3/4/3/134319972/logadipegejew.pdfIn PDF document text
    • https://tusemebi.weebly.com/uploads/1/3/4/3/134316443/purux.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/c9d94d62-ee3a-47ee-beb7-e5532835c9bf/sedeja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5594e2ef-e4a4-4858-b39a-d29c10d5c0ff/73732584018.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_off0000c5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A2 5676 bytes
SHA-256: db4509f0f719c6b72f6772b21b4cb70d92031db9fb4e6514271f1107e98fae23
font_01_sfnt_off0000d8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D0 10848 bytes
SHA-256: e098df14ec01627c5705e3e0edab7be982a745c7b1927b8fe0bfa1a42ba5d3af