Malicious PDF — malware analysis report

Static analysis result for SHA-256 020b380e41da9893…

MALICIOUS

PDF

42.6 KB Created: 2020-10-06 22:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c3c349dca89e65c11ed12c4c499a0ad3 SHA-1: a3e44f9ad15776590eaa22411b2791cb4618758d SHA-256: 020b380e41da98936f783c568497b65aa1907de3bd7dcb2395bdcc2e0c5afe20
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=column+chromatography+pdf In PDF document text
    • http://befema.ofiar.org/uploads/1/3/1/0/131070011/fdef4.pdfIn PDF document text
    • http://xoxob.cgmfinc.com/uploads/1/3/1/6/131607203/6858681.pdfIn PDF document text
    • http://files.emkdgenealogy.com/uploads/1/3/1/4/131453250/4991405.pdfIn PDF document text
    • http://wikadizo.patriothallsc.org/uploads/1/3/1/6/131606349/d99d1e59d4.pdfIn PDF document text
    • https://site-1044146.mozfiles.com/files/1044146/39468930977.pdfIn PDF document text
    • https://site-1039720.mozfiles.com/files/1039720/pirogu.pdfIn PDF document text
    • https://site-1037091.mozfiles.com/files/1037091/someveses.pdfIn PDF document text
    • https://site-1036725.mozfiles.com/files/1036725/kuzidu.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/9c0262ed-dd5e-4b55-a82f-2cb317a14afc/vanogidamudij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a08ccdc-da3b-4e91-a6d2-cd0fdc8cbdbd/rurerovibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db121fc9-40cb-47e8-901a-fafa85322cc7/lesed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0830133b-b8c0-4366-9409-ee95f088df50/68162629876.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba98234f-9781-4208-8378-96df2264b47d/73298738365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1258/7171/files/pearl_s_buck_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/wave_interference_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9228/6874/files/rutusupugifosukarexoro.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_off00006813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6813 5400 bytes
SHA-256: fbd34328bab6b53de59451ade1aaafcb26c5689172edfefebf7628d15d2aef48
font_01_sfnt_off00007a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A49 10376 bytes
SHA-256: f42022899ed86df4f0c8bbc3a7070b8fd8b176aeeadd75de410d4af67dd3db07

Open this report in the interactive analyzer, or submit your own file for analysis.