Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e17ae370323f44…

MALICIOUS

PDF

43.6 KB Created: 2020-11-08 03:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2a5294888ba103e1a3099c571f802d3e SHA-1: de1e8c9c8e17b8d88165e0e871674fceaf5ebc47 SHA-256: c5e17ae370323f44094ddbb8bdd900ab46c0308e3f1cbb8ba0bd029e669aa2d1
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/aws?keyword=killington+rental+program PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384647/normal_5fa6da712927c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387929/normal_5f952823474ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393791/normal_5f9f59f29cd20.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/lupebesu/the_crucible_crossword_puzzle_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/molecular_gastronomy_book.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/rurewopakidubipovi.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/94245113786.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/33525691522.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/gigalexezikudezunefudu.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/itil_capacity_management_larry_klosterboer.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/angina_inestable_y_estable.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/jagogiwunot.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/jerirefav.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/25311370715.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_off00006b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3E 4932 bytes
SHA-256: d9583da2dce200f9ae24bf04870e6dfa670b9964a34cbb5867f4269327b968cb
font_01_sfnt_off00007bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF9 10972 bytes
SHA-256: 2ec6bcaff395b3c94e7ab7ef2a341ae56cd61778d3ecdd903307433f937c344a