Malicious PDF — malware analysis report

Static analysis result for SHA-256 565fe662b19de507…

MALICIOUS

PDF

49.3 KB Created: 2020-11-05 20:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 01072ef9c37ab89ab52cc5de6b2bb74e SHA-1: eadcc5a556879da57627b4439590f18dc752cdf7 SHA-256: 565fe662b19de507c4a5eb68194e979fe0bd6379f6c9cd37b2c0bd90e6bb8d0b
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://trafffe.ru/123?keyword=shoretel+ip+phone+655+user+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372072/normal_5f897ee02c1a0.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/0915b62a-57fd-4928-b3f7-e1e491a8de5c/18649740233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1535b4be-5efa-4bda-b6ba-af2983539abe/mulan_2020_filme_completo_dublado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b325e878-ff5d-4efa-a8c8-44a52e271cf3/gnei_beklerken_dizi_mzii_szleri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3068f964-ba2b-4d7b-a8dc-4f20236c0018/simetaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e56d91a-96be-4e97-9497-ce3a9a33378d/mofezafebuginuxonazaruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5477/1623/files/photography_magazine_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74c01233-4005-4ef4-9d18-096d63c5bd10/42271051339.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_off000080fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FC 5392 bytes
SHA-256: 384669abdf40e267ef72ce6663d2379f356b5aa2e9501db909f2d6c7572f46f4
font_01_sfnt_off00009343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9343 11556 bytes
SHA-256: 9e06f671acd231a5ff917e63f1d24e05da2ca1a8166a1ae98c5eb682afc1e341

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