Malicious PDF — malware analysis report

Static analysis result for SHA-256 881506de1a4ded0a…

MALICIOUS

PDF

72.0 KB Created: 2021-02-28 06:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 831d5caa27f00a338b066115c8b49553 SHA-1: 6176309b0f38ad6ed868209e224b8a32348c9f23 SHA-256: 881506de1a4ded0aad8c9fee718e53996a8ad351de6f4657f20450686b7366e1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/wix?keyword=netflix+apk+hack+mod PDF link annotation
    • http://theharaka.online/lodefuxud6vuo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501233/normal_60075abccc9fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458145/normal_5fe7e71d74525.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465908/normal_6028fe1676600.pdfIn PDF document text
    • http://xitnet.fun/5984242139ieph8.pdfIn PDF document text
    • http://onlineeshop24.xyz/sydney_opera_house_tours_ielts_reading_answers6bhhj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384154/normal_603a504d4a7b9.pdfIn PDF document text
    • http://esclub.pro/kk_muhammed_asi_report03k3c.pdfIn PDF document text
    • http://apparentlyopt.com/what_do_dashboard_warning_signs_meanwdqkb.pdfIn PDF document text
    • http://fitdieta.com/gps_speedometer_for_car_apprfhxp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380883/normal_5ffcc28149d53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_60265d0e8e4fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465538/normal_5ffa38c6917f0.pdfIn PDF document text
    • http://verification-help.com/starbound_broken_protectorate_weapons8rs30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475376/normal_600db934be34e.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/filidabut/2341628137.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/weather_report_anandpur_sahib_in_punjab.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/davenuvaz.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_off0000dd97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD97 5224 bytes
SHA-256: f526eae3917dd31aa3f44c100caeaf8c15cc0c3906caa063e9d4909cef526dba
font_01_sfnt_off0000ef48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF48 10428 bytes
SHA-256: f7f16d127eac9c81ef021712fd2bb8ab434eb5a9fad602ec34df6a84175c4502