Malicious PDF — malware analysis report

Static analysis result for SHA-256 e672934da631fb57…

MALICIOUS

PDF

48.9 KB Created: 2020-10-24 23:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: ba9364c1b4c8da2b1ea4794aa766ee26 SHA-1: 6eb8fe2834162afb69a8f2ca20e29e8b1afc3c99 SHA-256: e672934da631fb5775302720c074ecfb35fa105de111c19d8e3131971d110f9d
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.link/pify?keyword=propiedades+fisicas+y+quimicas+del+selenio+pdf In PDF document text
    • https://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/bifigosuvejam_xefimizipa_luxuvorumodapig.pdfIn PDF document text
    • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/9623872.pdfIn PDF document text
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/2c15d131a8605.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403262/normal_5f943be39342d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379236/normal_5f9140d31ec76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369777/normal_5f8df979aa3b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386363/normal_5f8d1be49060f.pdfIn PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/7470081.pdfIn PDF document text
    • https://dozasasakebo.weebly.com/uploads/1/3/1/1/131164234/puzabawilodiluna.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/0a982bf6-52ad-4930-9110-0e08af53c0d9/vagagiwidulidipaxega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89ec0347-e351-4429-a157-7c3f38312cb2/nevanijafuja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65d53a86-a658-4728-82ef-3b85b059cdcc/jonevafivilokipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cf67d4d-ab49-4c79-bf97-2a52f1d3fc3c/firefovivupobomizod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/5673/4630/files/chess_queen_moves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0124/9444/files/diwijutigebogonavo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/368115dd-a062-49f0-8e0e-258e50387461/40764620929.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b3ca5ac-4273-4a5d-88e9-5df8b5c40eb8/62886146501.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb466df4-49d3-4d63-a453-3a91e2405495/90561562698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf5eb286-f929-4ee4-b51a-99f5dcff015c/42328111385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cc6002d-1ff9-48d4-8d63-0b97d7b81966/xukexavesiwok.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_off00007cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF9 5528 bytes
SHA-256: de260d5755de128367fadb24707f38119ae466452f64342520f5df939b522eb7
font_01_sfnt_off00008fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBA 11036 bytes
SHA-256: 3c851ddbb1e2290edf1676f9a672735db4611e4a397bf1d98de27645356de056

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