Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f26db7e7e3754c1…

MALICIOUS

PDF

39.8 KB Created: 2020-11-06 22:31:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: f8714408e7ed57f6ad1b52e2b76ef008 SHA-1: 9276b2dc3a04e6437574410e4c0a83b6b762499a SHA-256: 0f26db7e7e3754c1163058a8b8d5bf578505560ef46921d9c29a1a2729935059
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://traffset.ru/123?keyword=what+is+accessible+income+wells+fargo PDF link annotation
    • https://zavisedifigi.weebly.com/uploads/1/3/4/3/134316550/153fae1ae1.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/c26af518-d8ff-416d-90a7-59f095d2bc29/kawurusiboxapigi.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/traditional_bulgarian_female_names.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/home_sheep_home_lost_in_london_not_doppler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67dbf709-3cd1-4460-8edf-adcb08961eba/37280782868.pdfIn PDF document text
    • https://sobanez.files.wordpress.com/2020/11/modern_television_practice_by_rr_gul.pdfIn PDF document text
    • https://jasobegofur.files.wordpress.com/2020/11/46028857855.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/76132291323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66e74422-04bf-463e-8667-91645616f508/raligemizi.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/wurthing_high-back_executive_chair.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_off00005e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E60 5540 bytes
SHA-256: 801f76025dbb1b11093e16ccab32dfc860a00c9838c444e0bdf0f0c527d7e46b
font_01_sfnt_off0000712a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712A 9672 bytes
SHA-256: 8d0330a4c2a765a78e87b82c587d01b3bee3b5755a5ddea45f9595056b19d334

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