Malicious PDF — malware analysis report

Static analysis result for SHA-256 067299d6959d1ec2…

MALICIOUS

PDF

44.3 KB Created: 2020-10-18 06:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 13613d079429e7853b363b4ec1cd9d6d SHA-1: 951a572c6b0d691ca01b0e3b477ce3745cf60679 SHA-256: 067299d6959d1ec22d91542ee08769e43d5acb0cdf02093ee1cf39d954be9a4f
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=organizaci%25C3%25B3n+pol%25C3%25ADtica+de+la+nueva+espa%25C3%25B1a In PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/xizeluforexunewa.pdfIn PDF document text
    • https://gaxopekel.weebly.com/uploads/1/3/0/9/130969853/nemamaliz.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/4a90eaba6.pdfIn PDF document text
    • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/2207905.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/18ad995.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/palaj_xofepevez.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.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/d1ceb4a5-8041-4e8d-acea-b14bfd900a37/kevoluwuvusedip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afb9363e-d542-4f37-a570-6fab35b5be73/62132090854.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/336e7e6a-bcf4-4bd1-b1ed-c13d32cb60e8/34697859701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/359f18ef-6510-4fba-b7dc-efd6ac1b6ebd/topofaxevab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9880d5e6-83f5-4e26-b1fb-df2239e97369/51908309100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ca8f777-a097-4f61-8deb-13e416139930/tabazeboxinamub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1d61af1-f63d-4b50-bb5f-0e4492ea3d23/7198718762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/1412/2404/files/wezugozazoxoxufez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2351/3754/files/koxavaferateka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/0542/7879/files/wivalakovuvupibolelil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eafd5bd7-c00c-4c9a-9166-7dc80ca56754/69657921492.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40044698-fe73-416c-b0a8-116d500c1952/45079979480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2e382c4-c97c-46e4-906b-6b49e9da8150/dusoxijefujokasukom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/175e4ca8-db7f-4b9f-8066-db088cff2a19/bipuripovipulifulopewez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4e7eddc-7d68-430f-84b1-e303ad7a6c8a/lurovakavek.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_off00006b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B55 5780 bytes
SHA-256: 08901af6ba8345a797c281805490d89bffa684ec09a2c99a1a3d63a7c989b439
font_01_sfnt_off00007e8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8F 10712 bytes
SHA-256: 2c68d0879fa20b4ad16f666a030dd4f9d863ccbd54243783d64f27af1c1aa7b8

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