Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e49e80a48a8aeeb…

MALICIOUS

PDF

42.1 KB Created: 2020-10-13 20:14:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d2e2e06a427d6ecd7a37427cbcc554e5 SHA-1: eabeec23ddc3bafd692284e2db873cc67f17455a SHA-256: 2e49e80a48a8aeeb1ad1ce57119d3c370e2897398b7777491b795f4137ef181e
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/strik?keyword=practices+of+looking+chapter+10+pdf In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/4918653.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8276696.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3355978.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/metor.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/jinitorip-bolag.pdfIn PDF document text
    • https://site-1036918.mozfiles.com/files/1036918/lukoxogiwijavojus.pdfIn PDF document text
    • https://site-1038782.mozfiles.com/files/1038782/zuraxugoleva.pdfIn PDF document text
    • https://site-1038737.mozfiles.com/files/1038737/23536304426.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/a7b88.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/safado-fodidunixoso.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/a87a1954-3088-46ca-9379-90f0753d748e/kajuduz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de2389b-c649-43c4-bda6-9c641c909e07/resikexebiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/272ab89a-df82-4e38-9d31-59ff9550d326/vegodal.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_off000066d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D3 5676 bytes
SHA-256: b245359525bce2ec4365364ef88f2005aaba96c5a3cf8853d9c06b58fcd3fb57
font_01_sfnt_off00007a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A15 9824 bytes
SHA-256: df8b0aa5172c558ef1c084201cfc252c179574016e7aad2e38b8a048da0b8f12

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