Malicious PDF — malware analysis report

Static analysis result for SHA-256 d245f287bc4c3f1d…

MALICIOUS

PDF

77.9 KB Created: 2021-03-18 10:26:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7147dffda8f10b1bdfdf9472800f8d34 SHA-1: 58a1b40082fbd7bd143ffdb12f1da509c9a02a6e SHA-256: d245f287bc4c3f1d467dd71af343142f8712adbb9e99c17c4fd194ba7e767a3a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to trick the user into downloading or viewing malicious content. The document body, though heavily obfuscated, suggests a lure related to movie subtitles.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/123?utm_term=agora+movie+english+subtitles PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443326/normal_6031d367c7a50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474997/normal_60013c6d91ff6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478134/normal_5fce183d3cb80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470683/normal_6026415e53fdc.pdfIn PDF document text
    • http://sipamuxagiporen.iblogger.org/64087136877.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459805/normal_60025c94022cb.pdfIn PDF document text
    • http://radafogibivos.iblogger.org/81480009212.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451049/normal_6026fd6151fe6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450418/normal_5fcf8258eb3e9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tazopaju/firex_smoke_detector_two_beeps.pdfIn PDF document text
    • http://serujiri.epizy.com/descargar_aprende_ingles_en_7_dias_ramon_campayo_gratis.pdfIn PDF document text
    • http://sisejarozig.epizy.com/bhagavad_gita_made_easy_english.pdfIn PDF document text
    • http://zesubilav.epizy.com/9904084369.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/best_philosophy_books_everyone_should_read.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/pidejanepewi.pdfIn PDF document text
    • http://nelodetasa.rf.gd/cleaning_company_business_profile_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/noxipuramusolovigeviri.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/71880860175.pdfIn PDF document text
    • http://xivanokajeze.epizy.com/favipok.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/holcim_philippines_annual_report_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/bikester_returns_form.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/how_to_change_opacity_in_premiere_pro_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/xujek.pdfIn PDF document text
    • http://sujidise.epizy.com/68898007025.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/whirlpool_washing_machine_parts_breakdown.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 5172 bytes
SHA-256: fe9f1e5dc4ca481e669397a5e698df632174eb62c51aab0a9f2e056fe64773ab
font_01_sfnt_off0000f775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF775 10744 bytes
SHA-256: 36a462c9310391d54d52b3580de7aec02d35052943337ed42ed2a660d246222f
font_02_sfnt_off00011c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C16 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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