Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfef0f5ad6a45f17…

MALICIOUS

PDF

47.2 KB Created: 2020-11-05 18:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 66ac0ed2215e17d09a0ca8bf3944e1dc SHA-1: 1a12da6d18a50e2d2b3bfd5682f2d9f383c3f8eb SHA-256: bfef0f5ad6a45f1725c1b3a6277222a4d662224c5dbf315ced94f9cbf9754168
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/aws?keyword=rosario+a+maria+rosa+mistica PDF link annotation
    • https://teguvubab.weebly.com/uploads/1/3/4/3/134347924/3053170.pdfIn PDF document text
    • https://ganizosu.weebly.com/uploads/1/3/4/4/134434359/baf3c2d822d97.pdfIn PDF document text
    • https://letolonenuxe.weebly.com/uploads/1/3/4/0/134095956/c703e2e02deb4.pdfIn PDF document text
    • https://pudukodup.weebly.com/uploads/1/3/1/4/131407572/7e6d78bee4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380082/normal_5f92d3b9c8e0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412377/normal_5f9b327400cc7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/megulu/sliders_recipe_hawaiian_rolls_and_rotel.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/define_portal-systemic_encephalopathy.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/tratamiento_antienvejecimiento.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/kopuzesutewoditugufete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ff4b54-7884-47b4-85e7-d3a7c7f40464/ccna_portable_command_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04fb6210-3c73-4065-b83d-1f01c2234295/80577816345.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/kuvijawafawopewuzek.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_off00007da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA9 4920 bytes
SHA-256: b02aac8090102a2085d51d1bcfef3c528f735bcdb7e6ea0f62a088f652183c79
font_01_sfnt_off00008e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4E 9968 bytes
SHA-256: 06da7159b531d4bc227d97816abb4ade64c67cf4f8733eb3be5d54b8df70a82a