Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80fc4b58ce14a9e…

MALICIOUS

PDF

43.3 KB Created: 2020-10-14 02:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7dcfab487207625a7353e1b99988cc07 SHA-1: 610ebc388a4fefc5c6b13c56411f397b03a6a6ff SHA-256: e80fc4b58ce14a9edfb81c7ea80c81079ab94e65c93adcd9b134410b020339b2
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://cctraff.ru/strik?keyword=neoclassical+interior+design+pdf In PDF document text
    • https://site-1043607.mozfiles.com/files/1043607/81161666853.pdfIn PDF document text
    • https://site-1042541.mozfiles.com/files/1042541/wipuzuwunuduritolope.pdfIn PDF document text
    • https://site-1037091.mozfiles.com/files/1037091/bukosaxupexaguge.pdfIn PDF document text
    • https://site-1036987.mozfiles.com/files/1036987/vepevasasokewotolatenamuj.pdfIn PDF document text
    • https://site-1040798.mozfiles.com/files/1040798/62512272470.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/d96ddb407408.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/bewomo.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fibaxizimudez.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/bekalan.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/fd194345-92cd-4e01-b1ac-1caa38642816/34580697154.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f864e32f-a69c-4d71-8a2f-ce35826d5b9f/19101988873.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf7a86a5-7973-4a52-b491-08bd7c5f86f9/fuvuxi.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C25 5292 bytes
SHA-256: 026317edd560a63e0714dd51434cd2ae37a26b28631a6d051407710b728bc498
font_01_sfnt_off00007e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2C 10300 bytes
SHA-256: 6e33c36e51d67d73bef3051a7024b9375461b6bdc4d81a691036f6960c71f465

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