Malicious PDF — malware analysis report

Static analysis result for SHA-256 445df2231060da7a…

MALICIOUS

PDF

42.4 KB Created: 2020-10-04 20:41:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-10
MD5: 5b66b2c23b751d33df28fc5ffa58b92e SHA-1: 1168ecc13e4073d2f7b779cb947c6808cd9ae163 SHA-256: 445df2231060da7a83b2022d3ee4cdfee86365308688d883212d22ccc6a420a5
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/strik?keyword=bodybuilding+meal+plan+excel+spreadsheet In PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/jedaxo.pdfIn PDF document text
    • https://site-1040045.mozfiles.com/files/1040045/vafubutukuzowixifam.pdfIn PDF document text
    • https://site-1037011.mozfiles.com/files/1037011/98212765628.pdfIn PDF document text
    • https://site-1038725.mozfiles.com/files/1038725/30810594419.pdfIn PDF document text
    • https://site-1040988.mozfiles.com/files/1040988/siforujizobisonal.pdfIn PDF document text
    • https://site-1036936.mozfiles.com/files/1036936/koxonatu.pdfIn PDF document text
    • http://files.quadslikehalie.net/uploads/1/3/0/7/130738822/675b853a.pdfIn PDF document text
    • http://files.lgbtasylumproject.org/uploads/1/3/0/7/130740483/digorega_fuxix_givanelope_vononoxotepapij.pdfIn PDF document text
    • http://files.hartskihill.com/uploads/1/3/0/7/130739625/1622633.pdfIn PDF document text
    • http://moduf.tinmanlifecoaching.com/uploads/1/3/0/7/130740433/18a6335713.pdfIn PDF document text
    • http://mapobinu.kitchengarten.net/uploads/1/3/0/7/130739206/zosizetivup_ruwaxofo_narufojafugu.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/b54f7479-ae85-4956-b0ee-02b10de1013f/sarofalowirevubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18ae8386-f556-40fd-bfb2-623d77c5665c/26242174491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e3e0c4-ecac-44cf-ae33-ae537515ab21/gibopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bb46449-6f3d-4e42-84ba-d0f91ebf8d90/23020829599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40e45706-8615-4d3c-aca7-2bd8e949eb78/gufubaropanifipezo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9F 2868 bytes
SHA-256: ef0ff104ea44b4f76f2e317c05d944ff73adab4e11d451763276b796cfc564ed
font_01_sfnt_off000065d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D1 5844 bytes
SHA-256: baf89bdf1f0dfceb9de625608df9c263ba6053aa00dec2ce3c9ca4ee8e37c231
font_02_sfnt_off00007998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7998 9948 bytes
SHA-256: fba5429cd4e88e4148272c82c26aa34a6376c8ea53f8640e682abccc5c3c3dce

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