Malicious PDF — malware analysis report

Static analysis result for SHA-256 949b3bdf5ecdd054…

MALICIOUS

PDF

44.0 KB Created: 2020-11-06 03:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: a9e33bec52e26ae46ab98f228df84ce0 SHA-1: 4f0749f40d8f86546e742a64951c384baea89cb2 SHA-256: 949b3bdf5ecdd054d79dfbb0647dca17dcef186cdf720c57722e740b749bd8b3
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://traffking.ru/strik?keyword=requiem+installation+guide In PDF document text
    • https://s3.amazonaws.com/fezenur/vt_lottery_second_chance_app.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/5014cfe.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/nujazizi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368493/normal_5f888893d8ad5.pdfIn PDF document text
    • https://garupiripo.weebly.com/uploads/1/3/4/3/134386314/1b87c687c23f.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/kusavowotujedoso.pdfIn PDF document text
    • https://dawanuma.weebly.com/uploads/1/3/4/3/134305997/bidavotubimawidufili.pdfIn PDF document text
    • https://rawebitor.weebly.com/uploads/1/3/4/3/134337567/7a6e53fc.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/vazigusabojov-vipesodud-burobodifulimen.pdfIn PDF document text
    • https://luzidasagozoro.weebly.com/uploads/1/3/4/3/134319964/9757266.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/mepuxotu-bowukapubisoriw.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006dfe.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006dfe.bin)
    • 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 extracted file (font_00_sfnt_off00006dfe.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFE 5180 bytes
SHA-256: 2786036f43c4d02857e973a7c5aabcfe800490e45edaf905ba834295917436ef
font_01_sfnt_off00007f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F8A 10456 bytes
SHA-256: 5a7f7c35c08a76c898b9d212dceadeffd5a8f4b6db53317e94c2a1e726c9565e