Malicious PDF — malware analysis report

Static analysis result for SHA-256 e797164297096755…

MALICIOUS

PDF

79.0 KB Created: 2021-03-06 22:35:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 14667df8b959b978d9b17b6e246d9f7d SHA-1: 58b25c6bbdb5a9f54eebde8ede137a07b229d304 SHA-256: e7971642970967553616d9d8d2e61906a6d446acd6bd567545496bbc9f889d52
134 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/strik?utm_term=prince+caspian+book+pdf PDF link annotation
    • http://rawuzexo.iblogger.org/lejetataruvivufekuwisoso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402718/normal_601f46c25f583.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485434/normal_601470ba2e989.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/1614106921483auu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471236/normal_5fcac4da1ab56.pdfIn PDF document text
    • http://kuwanusefunok.iblogger.org/google_drive_folder_python.pdfIn PDF document text
    • http://copyrightram.net/marvel_schebler_aircraft_carburetor_service_manual4s5ko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390350/normal_600da3a68f262.pdfIn PDF document text
    • http://dukafufuxona.iblogger.org/caterpillar_annual_report_2007.pdfIn PDF document text
    • http://drovazvenigorod.ru/descriptive_and_limiting_adjectives_worksheet_with_answers3pa5o.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/GOehhDf/infinity_train_season_3_episode_4.pdfIn PDF document text
    • https://cdn.sqhk.co/tezizejaropu/fGDyBie/sitorubulawib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478688/normal_600b13f7d641b.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/tojazudibumogab/lokivezurevomojalefeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5dbeb4-2ef3-4985-ae8a-4fb3ac6204bc/20190940112.pdfIn PDF document text
    • http://zeduvekitodili.rf.gd/noxez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed34a6c0-309f-496d-beed-3eec97a4c11f/nibasikenuninoresukexenul.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/1080p_4k_video_songs_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/folorerako.pdfIn PDF document text
    • http://xezeruv.epizy.com/durga_saptashati_argala_stotram_sanskrit.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_off0000f5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A4 5320 bytes
SHA-256: e41ab5137ba3006b5477cb63fd11f9b0e6bf6b7285981415b8efd94ec9258c34
font_01_sfnt_off000107c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107C6 11660 bytes
SHA-256: a76401ac1550e88b9d45b2be0e96db6fbc6af00f55141f2c25b6e2fb273766d2

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