Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebbeed23d4bfdd2…

MALICIOUS

PDF

45.3 KB Created: 2020-11-08 17:56:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: b27c1a392a4f0d1e884d4267bad5262d SHA-1: d5d0bd9dfbd2fef5581b524144d9d2fbc1f05b40 SHA-256: 0ebbeed23d4bfdd233673023e6b8f9c953bc74a011421ff59344b5a22935f07b
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=jeppesen+airway+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375195/normal_5f9e6e2758801.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369516/normal_5f8c1fcb66dd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_5f8d1166ae640.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448550/normal_5fa210b186740.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f8b1b09d67dc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/ribowexulo/29238542814.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/23376905486.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/gowusotolawujetesob.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/ethnic_conflict_in_sudan.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/21987910698.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/jokojogojed.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/33679110013.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/onan_generator_repair_nashville_tn.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53ef1544-7d60-48d1-af49-9252ae1937e1/27282800645.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C6 5060 bytes
SHA-256: 3d7c902a4308dfbd820c51496da048c7d85cf446e35cfc03b08c38fa8eb7b9bb
font_01_sfnt_off000075e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E3 10684 bytes
SHA-256: f6a64425bdcd29833d47e682e75dba85cb912c0b431b9568e671b2a3079b6511
font_02_sfnt_off00009a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A34 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378