Malicious PDF — malware analysis report

Static analysis result for SHA-256 41302c2fe6b9f979…

MALICIOUS

PDF

43.9 KB Created: 2020-11-05 17:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d6342cc590601b3dc1bbd23635da7b4c SHA-1: 88c70276d23e41e25fbc7aa8f027ef5569a5933f SHA-256: 41302c2fe6b9f9793f594f618de4a6b73ea31f0f2261a7b94673f1a2564593bf
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://trafffi.ru/123?keyword=shrek+2001+mp4+google+drive PDF link annotation
    • https://bitekiparoduj.weebly.com/uploads/1/3/4/0/134017536/1726140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f86f84941a1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404755/normal_5f92b5225b5ad.pdfIn PDF document text
    • https://gazofifato.weebly.com/uploads/1/3/4/4/134496451/xuvawes-zebikabimoze-zotefogeruxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f870dd060677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f9cfe87c93d0.pdfIn PDF document text
    • https://renikafajuwigag.weebly.com/uploads/1/3/4/3/134317319/c839e54d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401505/normal_5f9184198fcc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385427/normal_5f94ca4f7afec.pdfIn PDF document text
    • https://tololomajaju.weebly.com/uploads/1/3/4/4/134472688/b8d40cd28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414172/normal_5f9a11181a037.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/2c956c69-ca57-4828-8eb2-b328e44dc69e/pimijevozogifubadejuxed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a20bebeb-e189-4d05-bfa2-c4cc0d53c39a/duvovuranotafuwone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b60cf84c-8568-46a6-9ece-59cef14c632b/sldr_adjustment_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dc785d6-e1ab-4509-8386-7f13a1459b72/57064307166.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_off00006c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0A 5624 bytes
SHA-256: 9e095925acbb5ae6b0ae6503a6ae7f7c1d4a6542d6d212539de50dc295fac385
font_01_sfnt_off00007f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 10492 bytes
SHA-256: c27b2ff78b15e50d97a18de78ba275483d5f5f3363dd098d76c570e389563ebb