Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc50fa5ae7e100b…

MALICIOUS

PDF

46.1 KB Created: 2020-10-15 06:12:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2ce248437fa0fb4f18b113d3158c3b75 SHA-1: 2a3bcb814e1ac5da3af2dc33bbfb5d1f455c03b8 SHA-256: ffc50fa5ae7e100b0df1f699f92448cc3da70d86c768982b46d7fc8239ec4a49
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/123?keyword=modern+combat+5+online+apk In PDF document text
    • https://site-1042740.mozfiles.com/files/1042740/android_app_uninstaller_for_pc.pdfIn PDF document text
    • https://site-1043880.mozfiles.com/files/1043880/ernest_shackleton_book.pdfIn PDF document text
    • https://site-1039390.mozfiles.com/files/1039390/16779393316.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f86ffaf4a678.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_5f873fe8068c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366630/normal_5f875d24d7bec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5f87855c0ef5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5f87bcc33f7d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368248/normal_5f878d07d9a65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366630/normal_5f875db3ee3fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366032/normal_5f878ea86cb84.pdfIn PDF document text
    • https://site-1041284.mozfiles.com/files/1041284/75464713820.pdfIn PDF document text
    • https://site-1039833.mozfiles.com/files/1039833/vusegumalogapeto.pdfIn PDF document text
    • https://site-1039607.mozfiles.com/files/1039607/5383029063.pdfIn PDF document text
    • https://site-1044255.mozfiles.com/files/1044255/73321376570.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/451dd580-364a-4b60-a953-c4c5f4361565/rukufexakegevebemobavolaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e823b34b-92b5-43ec-aa69-6dacd516d340/ruxaxaguvatu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3abc9b32-bfde-43c0-aabf-98527a6cff6c/suteluwedevetikesirolateb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c9324fe-8ea9-43c0-90b0-8f47a65759ef/89186177895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c19d0ab6-5621-4f38-9e9f-c85aeaf22e61/32375449062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55a09f95-5de6-41d8-b43d-4a37c3e62b61/58466515378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b2e54e1-0e2e-4a7c-add1-32c1eac8676c/ditegora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8626ae4-bc74-45e2-bb8d-60ff21644336/videjupurivufetowo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEA 5376 bytes
SHA-256: 5958a865bf22917aab70c9d0c14ec5e57feec2f60dba288c1f443a10becee591
font_01_sfnt_off00007e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E15 1680 bytes
SHA-256: ca9d7dc72e897c78cc07d77530bdd55fc8ffa4f758f6b974ab702c950f3b3d47
font_02_sfnt_off00008681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8681 10760 bytes
SHA-256: bc67029078da8d269ea60b1fe7250fa6a89bb17302e959ad3405650a8807630f

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