Malicious PDF — malware analysis report

Static analysis result for SHA-256 70381e71475c0178…

MALICIOUS

PDF

38.0 KB Created: 2020-11-06 00:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c05db145a6918d98aba93d8f1df91331 SHA-1: 771d9dbe6eb88d493c74238689520626dc96f8ae SHA-256: 70381e71475c0178491411f552d0e99975b1680185cadafc7f19d22503a1e6ac
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://trafftec.ru/aws?keyword=inflectional+endings+spelling+rules PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368756/normal_5f87a916237b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393349/normal_5f8f6ef00dc00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383698/normal_5f9974b7cdab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385612/normal_5f8d350d53feb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367668/normal_5f9a2a844b93c.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/a05aff19-4817-46d2-a74e-89de84090269/mich_nervt_Bedeutung.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/14991382598.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/blum_concealed_hinge_installation_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b6bab88-9689-4c89-b31e-f77c468a33a3/5148828163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeda76f6-15a7-4e72-98ae-d76d196bb90c/les_nouvelles_nergies_c_est_pas_sorcier.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_off00005601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5601 5260 bytes
SHA-256: 753777f9de205c1be33defe9cb6396af71f413f85359e32c10f6af6f52b82f0f
font_01_sfnt_off000067fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FD 10940 bytes
SHA-256: 2541b69a87f19e85fbba43841c863da75ac4321eaaec049fe7f80f90454d1ad5

Open this report in the interactive analyzer, or submit your own file for analysis.