Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e25f7c99bfc44ba…

MALICIOUS

PDF

77.3 KB Created: 2021-03-02 06:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 401dcbd2dfb04ce162fd6c5820148aab SHA-1: 69d6998933d9c80e74bcdc2d783cef4412af3020 SHA-256: 2e25f7c99bfc44ba46d51625613dcfe15ccbea06439472e7e7e0791e39d4e835
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://midufefew.ru/wix?keyword=reading+a+triple+beam+balance+worksheet+answer+key PDF link annotation
    • http://vavesojijakoju.iblogger.org/china_embassy_authentication_application_form.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/clasificacion_de_las_cuentas_capital.pdfIn PDF document text
    • http://bolozofer.22web.org/annual_report_format_word.pdfIn PDF document text
    • http://vuwiwetidajin.mywebcommunity.org/stampante_canon_mp240_errore_p8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413117/normal_5feeac60479de.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403951/normal_5fcb4d7969e30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470835/normal_60267a70becf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491164/normal_5fdc8b1bebadc.pdfIn PDF document text
    • http://kapovulup.mywebcommunity.org/12169645284.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/fekaduvopigab/counter_argument_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/wiselipinevanabufodez.pdfIn PDF document text
    • http://kugaxupupoguj.rf.gd/wupefiro.pdfIn PDF document text
    • http://luvetux.myartsonline.com/gumovuwisuzapajesopete.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/python_programming_book_in_hindi.pdfIn PDF document text
    • http://tuzibepunu.rf.gd/imdb_the_joker_parents_guide.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_off0000f0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FC 5892 bytes
SHA-256: f393d4725e69bc3d33dc9c0ad312fb4d7861e658fb9bb961c582705f05cf76bd
font_01_sfnt_off000104f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F8 10276 bytes
SHA-256: 52a3fcd0fdf3363fb0459e4afa9c0ec8b767015d57f59c27cb184339ede81421