Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eff5a904b8cf5ad…

MALICIOUS

PDF

39.3 KB Created: 2020-11-03 07:09:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 0fea5237f2b41192d6f7ac3dde5c1e94 SHA-1: a52c8893e21fc46c0951c2e6ccabf9f8d2bea24d SHA-256: 2eff5a904b8cf5ad8f47d9b5710edfddd5ce29a801d210fce14ef44cd30b38ed
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://ttraff.me/123?keyword=declaration+of+intent In PDF document text
    • https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/wonokazozak-fijanaluram.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/mifujulopesoxel.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/ralas-tapupav.pdfIn PDF document text
    • https://watuwejaxor.weebly.com/uploads/1/3/4/4/134437052/03e18b344d0.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/d07c425542415c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_5f922f05020e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401692/normal_5f99278886e2f.pdfIn PDF document text
    • https://jajozopikikaju.weebly.com/uploads/1/3/4/3/134359408/metaj.pdfIn PDF document text
    • https://denasigetul.weebly.com/uploads/1/3/4/3/134332190/kuguvojavu.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/8734818d-b085-470a-9dbf-0ad1b5f6507b/pinuduxakijakegosexude.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/88922432888.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/79056303060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/6644/8808/files/hamlet_s_first_soliloquy_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/zoology_books_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c1ea513-3193-44d0-b5b8-edc136fdc449/58788205658.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_off00005e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E27 4696 bytes
SHA-256: d82a2842ba789517c69b1178f3ce74cef47ac4574a80b96c7a215a0385763b73
font_01_sfnt_off00006e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E38 10120 bytes
SHA-256: 0ae80e121cad6c03afd2f99704039f73fd78303a6c0eca5747f38d43bb19ba5b