Malicious PDF — malware analysis report

Static analysis result for SHA-256 6989f32914b6d239…

MALICIOUS

PDF

36.2 KB Created: 2020-11-08 23:15:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 385c57571c615b6a9f6639bb29c3a8b6 SHA-1: 6cd4248631cf0655ac102ba5c92a6ceb904276a5 SHA-256: 6989f32914b6d239681443c1e375dbdc2ecf7e18169b42aa4c9a80798ae67f63
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=cascade+high+school+turner+oregon+football PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479925/normal_5fa833163ced9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365549/normal_5f8d523878edb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387938/normal_5f8fe282ad456.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5f876213ea485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f9ab3a645e05.pdfIn PDF document text
    • https://mosovokiz.weebly.com/uploads/1/3/4/3/134333023/6687622.pdfIn PDF document text
    • https://dililoperajat.weebly.com/uploads/1/3/4/6/134631443/968434.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/bovenotojitowe/build_a_bear_birth_certificate_template_blank.pdfIn PDF document text
    • https://nojelusemo.files.wordpress.com/2020/11/42971900504.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/94187567833.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/91774176569.pdfIn PDF document text
    • https://fimalul.files.wordpress.com/2020/11/xenikefeg.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/74822692297.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/calculus_early_transcendentals_7th_edition_metric_version.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_off00004e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7F 5328 bytes
SHA-256: 0119527530f6c643b58b28064c8717cf4b3351766e16761293196b27171e780c
font_01_sfnt_off0000608d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608D 10376 bytes
SHA-256: e8401df5eadff34791d76066d87564e24a944afadb6adef12bdf6a8330602b67