Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfc909d39f54b316…

MALICIOUS

PDF

67.7 KB Created: 2021-03-06 02:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c26aff425e14203f9435e913153df7ff SHA-1: d356a7b691ce82c1c8ae26da3ba3cae3677179e0 SHA-256: cfc909d39f54b3167b50437577fa9e6caf1728f17bf5484b51b0897f9e76dcab
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://resalured.ru/wix?keyword=char+broil+advantage+series+owner%2527s+manual PDF link annotation
    • http://degimogug.mypressonline.com/vorukuwimeliweji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494451/normal_6021ff43192ea.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/how_to_treat_adderall_withdrawal.pdfIn PDF document text
    • http://peteferix.mypressonline.com/que_desean_ustedes_de_plato_principal_in_english.pdfIn PDF document text
    • https://laxoweveludek.weebly.com/uploads/1/3/0/9/130970009/c2f11dcc369db.pdfIn PDF document text
    • http://zedateve.mypressonline.com/wallpaper_steamer_not_heating_up.pdfIn PDF document text
    • https://zamosokajuzosa.weebly.com/uploads/1/3/4/6/134651904/makosom.pdfIn PDF document text
    • http://didazema.mypressonline.com/pared.pdfIn PDF document text
    • https://jubojavinuduv.weebly.com/uploads/1/3/4/3/134316702/danen.pdfIn PDF document text
    • https://vidatizotasajad.weebly.com/uploads/1/3/4/0/134017381/nupowaf-zipinewoza-pomatok-wuzezejonajulox.pdfIn PDF document text
    • http://gowanenutik.mypressonline.com/the_real_book_6th_edition.pdfIn PDF document text
    • http://wumewil.sportsontheweb.net/age_of_rebellion_cast_2018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448103/normal_5ff2bcc28db43.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420014/normal_5ff9fd7058bb7.pdfIn PDF document text
    • http://zodatowafe.getenjoyment.net/kupetevasivigobixenituro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418391/normal_60380d537b8e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502464/normal_5fcec02634f23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://30f21d72-2b41-4965-a7bc-2abb02bf1ded.filesusr.com/ugd/47e66e_aa71e4ce0fac4969bbc182aabea3faf1.pdf?index=trueIn PDF document text
    • https://73a1781f-5c9f-4c76-8a11-a8e8c44f336a.filesusr.com/ugd/d9f7b5_c3aa30cf513d4c149a665746f85e2dfa.pdf?index=trueIn PDF document text
    • http://gakajitaju.atwebpages.com/student_application_information_sheet_lehman_college.pdfIn PDF document text
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_00494828d40e4e55ba0e0dde76775e57.pdf?index=trueIn PDF document text
    • http://gemixeferakin.rf.gd/pomodoro_technique.pdfIn PDF document text
    • http://bibedufuranuju.rf.gd/contact_us_website_template_free.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_off0000cbbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBD 5468 bytes
SHA-256: 5b540aedc7b72cbf23625f9af037e6f50ebeb78316f1f66ecb99f755e3afd871
font_01_sfnt_off0000de40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE40 10224 bytes
SHA-256: 41cc141810e892c60fd2de4de5f900b7fad246f7c2b3babb8874728a003aafe8

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