Malicious PDF — malware analysis report

Static analysis result for SHA-256 06204e75f0efac32…

MALICIOUS

PDF

46.2 KB Created: 2020-09-30 07:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b120b404e0222f306f46e9cdb197fc8e SHA-1: ada2371bc28e5e865bd7f09b2919243a91a4aec2 SHA-256: 06204e75f0efac3255ba33c201341aa86c3b30b4b2fae50f2f7df756b8bd56fb
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=walking+for+weight+loss+plan+pdf In PDF document text
    • http://files.lensofmysoulphotography.com/uploads/1/3/0/7/130775702/fenajevoxazeku.pdfIn PDF document text
    • http://files.cruxdesign.net/uploads/1/3/1/8/131856987/kexawe.pdfIn PDF document text
    • http://megitaxo.fccsmithville.org/uploads/1/3/1/4/131437130/07c4cac9.pdfIn PDF document text
    • http://files.norvacentre.com/uploads/1/3/0/7/130739043/reveganavujo-kojemez.pdfIn PDF document text
    • https://site-1037172.mozfiles.com/files/1037172/sizeponinuteweze.pdfIn PDF document text
    • https://site-1037160.mozfiles.com/files/1037160/kokemopifaval.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/22115810274.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/cb5ccd0f-138e-42ab-ac61-76716a24b77f/winejowekedenasitumiwup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf1100ae-7f32-4cf5-b025-eb83a4a198ea/90916896692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76c9f8db-71f6-4c06-bfe6-7f9cac80e4d2/72138169980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c2f2c1f-97eb-4b91-8698-20eb7f9bf86a/gavawasuzosibaxopezej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1daab00e-c4a3-407b-b143-51287638bea7/53590669587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/wazuwolixogimedipodonawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1674/8188/files/89407093319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2137/files/nomupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9588/files/fapufopo.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_off0000768c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768C 5472 bytes
SHA-256: 4cda0bdc31e1055f22ebfd584c76f63a2a73253f7cd7cd6eacf908c8cf88c6a1
font_01_sfnt_off00008943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8943 10052 bytes
SHA-256: 11c411b26cf86e100925780b07952f57a7281a4df889c4a858ae9971dda0d908

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