Malicious PDF — malware analysis report

Static analysis result for SHA-256 582002b7122e33b4…

MALICIOUS

PDF

51.6 KB Created: 2020-10-16 09:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ab462e73f2b1a363b12de84286a0d229 SHA-1: 78fd3453dc6f958eb6d9e07059d17481d44005e3 SHA-256: 582002b7122e33b43846530d6193c43f4c4fc21568068d1d9b54c88daae216be
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=only+love+is+real+pdf+download In PDF document text
    • https://xozanazefozi.weebly.com/uploads/1/3/0/8/130874019/d2c201.pdfIn PDF document text
    • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/b5f87ca0e.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/bibesekukemugedovofa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8713a00d682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367281/normal_5f8922538cc67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f875be89e6fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_5f87fa3c38062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f88234ca07c1.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/26b90b99452.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/riwigenamajone_mevot_nusuv_xapig.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/xewewasimabapap.pdfIn PDF document text
    • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/1a17bbfb905.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/godede.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/52728257080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9356/4833/files/simmons_college_library_science.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b2b860a-e45a-4dea-8b91-3b20f91bd22c/keketav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/395a0d58-76fb-42da-9080-bf8f661b262d/91534035869.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/956f19e1-9794-4d56-8355-b551ed22d9dc/8350205582.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_off00008928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8928 5316 bytes
SHA-256: 2c1187249bc2486e4cf20237c5d1cccfa635f74bdc56ccc1e30a314a906f04e6
font_01_sfnt_off00009b62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B62 12036 bytes
SHA-256: 33fff6e33d312358ea23964e3484a5c11cf91c42ea2ab92066fc4a4672af054b

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