Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 85213fbe83d2cb1c…

MALICIOUS

PDF / .VIR

415.8 KB Created: 2023-07-05 01:34:31 Authoring application: Adobe PDF Library 9.0 First seen: 2024-09-28
MD5: 870aac8f2a9eafde114434b1489e2438 SHA-1: 6dce2933c96a9bfac26f652069065a0e17f0981a SHA-256: 85213fbe83d2cb1c54e700ed9baeb7fc896ed6f838c4855ad8dc1d29507fa23f
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7464

Heuristics 4

  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://breaking-dawn-free-book-online.brookelyn.org/mukada.pdf In PDF document text
    • https://association-des-etudiants-de-guider-nord-cameroun.freedomweekend.info/malogemunugopemusagitevoj.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/159da013-e0ff-4e96-97d6-f3a265fad9df/downloads/pajojivejarageziv.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64edf7bb53f5d15c798fe2c5/65497b42910ec1db75142557_66777907979.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/94cabba1-b91d-4dc4-bb5a-aed051e4d814/downloads/how_long_are_temp_tags_good_for_in_missouri.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/4495e0bd-5ab2-4004-8be1-e30ef3373564/downloads/what_is_nature_of_covalent_bond.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/e6759127-6a8b-4c8d-94e6-ce0d4ddee816/downloads/gimaweguxadij.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d5e97205-d745-471d-94c2-4bc94f943a29/downloads/gopararepox.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/159da013-e0ff-4e96-97d6-f3a265fad9df/downloads/39858224497.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/e6759127-6a8b-4c8d-94e6-ce0d4ddee816/downloads/zagudavegixajukidejax.pdfPDF link annotation
    • https://img1.wsimg.com/blobby/go/e3743f65-6875-49ef-87db-9c97db9bcff8/downloads/kovilokosuxubaso.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00062d0a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062d0a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0A 17240 bytes
SHA-256: 7aa6670f0bfe8ac11119d4266d318813360be52cb16029409516b447f8647f0f
font_01_sfnt_off00065779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65779 10964 bytes
SHA-256: fafe4fa148ab2c48545b694324e0f7e787d1e9b17f101285eeecbeb913df81de