Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7f248ee78e3704…

MALICIOUS

PDF

44.5 KB Created: 2020-11-06 06:40:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 6a74b5085ffc6c1c8783decea02cad39 SHA-1: 50d9c4e3d6c7ae2efe923ae4ec8647e1c9110043 SHA-256: eb7f248ee78e3704e01f22de0f068ad22fda6cbff95109878edbc362d892a16f
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://trafffi.ru/strik?keyword=making+shapely+fiction+pdf PDF link annotation
    • https://zodowiburasuv.weebly.com/uploads/1/3/4/4/134448486/5445570.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/mapixujeromavulel.pdfIn PDF document text
    • https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/1110981.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376856/normal_5f90c74224e29.pdfIn PDF document text
    • https://fosogaji.weebly.com/uploads/1/3/1/4/131455903/lezalupaju.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/pebipefuwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f99b1d86765a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f98c73dba03c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386073/normal_5fa28c70d39a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415322/normal_5fa0207713e8b.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/sazariwapa/72293725830.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/84226817079.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/7301238006.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/pdf_sobre_el_alcoholismo_en_los_jovenes.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_off00006296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6296 5280 bytes
SHA-256: e47c5342035ccd3497645e1ed8813c3adb402881880582d98a1e57c16cabc30f
font_01_sfnt_off00007497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 10352 bytes
SHA-256: bcd0ccd883fec0d0c14640084f875dbc84146b53161253868441d87b82cf2ab5
font_02_sfnt_off0000976d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x976D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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