Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfaca0f1a36579f…

MALICIOUS

PDF

72.7 KB Created: 2021-03-08 00:00:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cb2fd5a8bb9e7a656f26e05fd0166fb9 SHA-1: b28ac63fe6c42a7239c4d23fbe6307c3a6c9fac4 SHA-256: 9dfaca0f1a36579fabb3836143e183e6a7937898a941c7854956985502104519
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=aqua+affinity+enchantment+minecraft In PDF document text
    • http://lady-bug.club/maserati_quattroporte_used_20167pb8x.pdfIn PDF document text
    • http://zixudivibudizu.scienceontheweb.net/el_seor_de_las_moscas_resea_corta.pdfIn PDF document text
    • http://rerubin.space/clasificacion_de_los_elementos_de_la_tabla_periodica_en_solidos_liquidos_y_gaseososor6z6.pdfIn PDF document text
    • http://menformula.xyz/327678162590xh5k.pdfIn PDF document text
    • http://romikemixukoj.iblogger.org/how_to_fix_a_burner_on_a_glass_top_electric_stove.pdfIn PDF document text
    • http://damvglaz1.xyz/nipatavenufwckcd.pdfIn PDF document text
    • http://lazerepil.site/ruzewukubotegozusev1zek.pdfIn PDF document text
    • https://vubopedu.weebly.com/uploads/1/3/6/0/136083963/35d021847de.pdfIn PDF document text
    • http://triple-doska6.club/28702474465vk0uj.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/cctv_camera_types_and_usesah9na.pdfIn PDF document text
    • https://xuvarilanagore.weebly.com/uploads/1/3/4/4/134470983/a7cc1a863c71.pdfIn PDF document text
    • http://detonic-shop.website/seven_eyes_of_god_neville_goddardtilxd.pdfIn PDF document text
    • http://stroymarketmetal.ru/98494279369cd47l.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/club_car_precedent_golf_cart_seat_covers.pdfIn PDF document text
    • https://finiruxadaral.weebly.com/uploads/1/3/2/6/132680938/kokebogelinosokoru.pdfIn PDF document text
    • http://dinavuj.iblogger.org/company_profile_template_sample_powerpoint.pdfIn PDF document text
    • http://korogesubelokut.mypressonline.com/lexoguribowukojuwesofux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lujuxug.epizy.com/material_design_guidelines_bottom_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/layers_of_the_sun_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/html_button_not_submit_form.pdfIn PDF document text
    • http://sekusasumoda.rf.gd/20391049914.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/jinuj.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_off0000e0ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AC 5128 bytes
SHA-256: 9d6f7f415bb4d2998f58584344a5b65bfd05197741dff0d5e59540ba0b2e03f5
font_01_sfnt_off0000f209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF209 10340 bytes
SHA-256: b26b98da3987127200e326d1350e372f36fa2fe1d4ff7ef568b5cca7579b9512