Malicious PDF — malware analysis report

Static analysis result for SHA-256 020e2af1992adc99…

MALICIOUS

PDF

71.4 KB Created: 2021-02-10 04:45:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 24183887c69b50badf3f318d362688a4 SHA-1: 6a1932dc6e44a457ab3f898327afbafb4b1e47a9 SHA-256: 020e2af1992adc995f01fa2fed3da253ffcf0cf9776378f9f56a8ebe8ed3cfbf
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://jottigo.ru/123?utm_term=3.2+puzzle+time+worksheet+answers+geometry PDF link annotation
    • https://cdn.sqhk.co/jolodovi/gd7VhdH/30141121915.pdfIn PDF document text
    • http://activa-fb.com/530350559533up61.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/Ghddig7/love_stories_tv_snapchat.pdfIn PDF document text
    • https://vetenejoxo.weebly.com/uploads/1/3/1/3/131379321/putuzala_sejefegod_goxekisuzaza.pdfIn PDF document text
    • https://monubigikupo.weebly.com/uploads/1/3/4/4/134493781/c04d5.pdfIn PDF document text
    • https://kekageguva.weebly.com/uploads/1/3/0/7/130776826/2044678.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/ZJjaMgg/ordinal_data_analysis_methods.pdfIn PDF document text
    • http://koteyarn.moscow/understanding_management_10th_edition_free_downloadiucck.pdfIn PDF document text
    • https://cdn.sqhk.co/silakozafi/Qgegghi/83578519088.pdfIn PDF document text
    • http://sanikeroror.iblogger.org/numerical_ability_test_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/ijigQkO/knife_set_sale_argos.pdfIn PDF document text
    • https://kajavowonedefa.weebly.com/uploads/1/3/4/8/134858644/204822.pdfIn PDF document text
    • http://onlinesos.tech/dimensional_analysis_worksheet_1ijbo3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://walefofu.rf.gd/free_lattice_math_worksheets.pdfIn PDF document text
    • http://detinisajelasum.rf.gd/95234190328.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/rumitikajalipubexamat.pdfIn PDF document text
    • http://desibevazivoxan.rf.gd/babujan_basic_electrical_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/gift_certificate_hotel_template.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_off0000d94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94A 5776 bytes
SHA-256: 813980b04c938bf8a79be7cdd850c7a494d37046de383beb91314b0fb2eb5716
font_01_sfnt_off0000ecf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF4 10356 bytes
SHA-256: 68b3349e64587bfc50cb3598e7ad9622c99c074ca24170c163283252c4be89ac