Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0802187f1d50066…

MALICIOUS

PDF

69.9 KB Created: 2021-02-26 20:29:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c5b97026439d05bde6ebb673e946bbdb SHA-1: 1e6a18334c3fe97e0e14f5821763c23c36101188 SHA-256: a0802187f1d500661da3268e057c708540c6a132e6399fd3706ac5cc4eb70483
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/award?keyword=c%25C3%25B3digo+penal+de+puerto+rico+2019+pdf PDF link annotation
    • https://cdn.sqhk.co/liregagibago/iJjeMjc/ace_academy_skies_of_fury_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lawikuto/lRihjbO/britain_s_war_of_thrones_cast.pdfIn PDF document text
    • https://rotarivinevi.weebly.com/uploads/1/3/4/5/134599250/5601854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451348/normal_6018cac73754a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472481/normal_5fe8b9052ceb4.pdfIn PDF document text
    • https://tokuniti.weebly.com/uploads/1/3/4/3/134331772/rowikegaliwanun-zisabigo-rapupoturulut-dipotugip.pdfIn PDF document text
    • http://gordei2d.com/c_more_film_tv_guide03xcw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450504/normal_5ffcc7bc0afdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376354/normal_5fd86f9b64116.pdfIn PDF document text
    • https://fusodozot.weebly.com/uploads/1/3/4/0/134096428/c3fc61882c5c1.pdfIn PDF document text
    • https://cdn.sqhk.co/bixatavafut/PWmGiiG/bsnl_recharge_net_banking.pdfIn PDF document text
    • https://libizegenumejav.weebly.com/uploads/1/3/0/7/130775388/861b00ab6.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/memobofilenabon/zujojeletesege.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/dalebelip.pdfIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/applebees_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/guide_des_gravures_2018_essilor.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/caravan_encyclopedia_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/formica_laminate_sheets_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/transform_algorithm_stl_c.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_off0000d0a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A6 5668 bytes
SHA-256: 4e7e052a39dbd425be695df9579a10a296d7883f5c0d74f5861c16d3f254ec4c
font_01_sfnt_off0000e3c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C6 11236 bytes
SHA-256: 9f24784cf070c9ed9566c38dd7d893961f4d707b694b59f5c2aaa439e411e924