Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08202ba76942850…

MALICIOUS

PDF

87.5 KB Created: 2021-02-16 07:03:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 02115e90fb1141c03365721c4a748e06 SHA-1: ccc8f9fd3b49e33dcb729ffb4c41757e103fccc9 SHA-256: d08202ba76942850a2550b277995750e741552f7b6d06146aab1eec75d3a89f0
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wb?keyword=common%20halfling%20names PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402261/normal_600d4915579f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403429/normal_601e4267ef03f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375703/normal_5fd96418842eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426690/normal_5fe559d0ec344.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414172/normal_5ff04099dc70e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459935/normal_60012c4b70907.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwodemo/iiyicMc/bugsy_malone_movie_poster.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496153/normal_5ff1c1198b553.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380883/normal_6022399051f01.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/ttgKsjc/75554884349.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_602b101c2720c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kowefejarozop.epizy.com/julaxabode.pdfIn PDF document text
    • http://pikawin.rf.gd/82890025902.pdfIn PDF document text
    • http://tomunipi.rf.gd/acl_full_form_and_meaning.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/wisconsin_department_of_transportation_medical_examination_report.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_off00011cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CF0 4992 bytes
SHA-256: 2b9ade4a7da428da117dc06c2c495360c01da3d14920c3d2d492cc51349773eb
font_01_sfnt_off00012dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DC7 10500 bytes
SHA-256: 48c036fdf4d42ade1f745d5b7ba149b20afd6ba5e5c80169ec9b9970b4b3724a