Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de3371612ca9063…

MALICIOUS

PDF

39.1 KB Created: 2020-10-03 19:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 6ae437a84882303f2b8fcb88ceb18712 SHA-1: 3e48b6421e2cc27d965127b100dda0df75e5c057 SHA-256: 4de3371612ca9063442741ac6bd1765e7ec402f3e5d2535448f60771e29d3b46
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/strik?keyword=el+misterio+de+belicena+villca+libro+pdf+completo In PDF document text
    • http://xafodo.malittlejohn.com/uploads/1/3/0/8/130874161/3b84b.pdfIn PDF document text
    • http://files.phenomenaltransformation.com/uploads/1/3/0/7/130739457/f8e7e1.pdfIn PDF document text
    • http://gikaf.embracefoundationgallery.org/uploads/1/3/1/4/131453197/lukajujabel.pdfIn PDF document text
    • http://files.aztecag.com/uploads/1/3/1/4/131437161/3dfe7affce82d1.pdfIn PDF document text
    • http://roxukep.fieldmusicals.com/uploads/1/3/0/9/130969656/cfcdd52e1.pdfIn PDF document text
    • http://latidu.rainiernetworks.com/uploads/1/3/2/3/132302966/tizinagef.pdfIn PDF document text
    • http://fanewe.tracygs.com/uploads/1/3/0/8/130874629/wubafevep_gevixivogi.pdfIn PDF document text
    • http://files.burtthompson.net/uploads/1/3/1/3/131380045/723407fc8313b75.pdfIn PDF document text
    • http://files.mcsbot.com/uploads/1/3/2/7/132740900/wopufa.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005748.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005748.bin)
    • https://cdn.shopify.com/s/files/1/0480/8894/0707/files/dojunixamukezo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b240a321-0f3e-4c0f-b23a-7f08cf70d80f/23151935814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0b23431-11ec-41a6-b6b2-3806670a8533/javiromubob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa50051f-0d18-4a7d-a0bc-704a3d1d6be6/radunovurodifotuxenosuna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15e2bbf0-d9fa-49ec-bc81-27db014a1ac1/rolufunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/950ba1b2-cdd9-4436-b5e9-76835ecbb59e/33792102549.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 extracted file (font_00_sfnt_off00005748.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5748 5456 bytes
SHA-256: ac70a2d30a77246e58660f10188cd5e2c6ae715413ef62a34071b2a66be0fb76
font_01_sfnt_off000069c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C5 10972 bytes
SHA-256: 9d6f41ca77d4e8421c9e4133370b9eebb21f553d221a5f56a5100fdec4f4c2c6