Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dde3b5f9a7dbdde…

MALICIOUS

PDF

38.2 KB Created: 2020-10-17 01:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ccd8457cd3c6896038f2e2b2cfc6f715 SHA-1: b45d6a8213186f22e1ff5163775135d2c454c896 SHA-256: 4dde3b5f9a7dbdde92ce220f9246bff19807f518f9a5dd804d9e280b53d97d0e
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://ttraff.cc/123?keyword=fundsmith+equity+fund+factsheet+pdf In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/velowo_dakemolaku.pdfIn PDF document text
    • https://jozokuxig.weebly.com/uploads/1/3/2/8/132814463/dubepeloguwobi.pdfIn PDF document text
    • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/beturasilaji.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/puvadev.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/wopujemufonaxeboz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f873fc0d293b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f86fc401ef85.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/bb2e0db5-aa55-4366-9359-6963efa0fe1c/62182758906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aff92b4-9cb7-445d-81c5-b52dab7df411/22019151067.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/416ac93c-ed1e-4c7c-bfb8-de9ccaf6a077/xevabuvuzoxoditedop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf99dc3-5794-43a1-8ef0-6cef52a8a44e/38500501587.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ed885b6-d99a-4236-b13f-a0c52184217a/21603846699.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7bd40de-76af-4e46-a62b-70d5ab437a39/79082829700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9a2a715-3a94-4944-98bc-e6d5a55f2b6b/79515771864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/8880/5533/files/kazivuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2072/1565/files/eureka_math_grade_7_module_12_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/pillow_tft_lcd_color_monitor_installation.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_off00005686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5686 5452 bytes
SHA-256: ddb0b79eb9eec886b122d6458c85eabe16c728e349ad48afbaf910180d534801
font_01_sfnt_off000068eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EB 10224 bytes
SHA-256: a9d973f02db9b1a26cb47d97850dcde5a419f5514e705a128a09dc5e3007a62b

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