Malicious PDF — malware analysis report

Static analysis result for SHA-256 118c8159a57ceddc…

MALICIOUS

PDF

79.6 KB Created: 2021-03-22 23:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e0b0351b6ad83a76d6bc52fcd312fbd5 SHA-1: f4303060364d69007cceb80f7165b5619cca596c SHA-256: 118c8159a57ceddca40eda5985e1afc26b8323d16435f437d0591afbbc00119a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/award?keyword=articles+of+association+pdf+notes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379732/normal_60311f4d81514.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/ngcgfia/cowboy_bebop_movie_soundtrack.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379486/normal_6020775a34879.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/dhiThis/totajumuvowewigegenilu.pdfIn PDF document text
    • https://cdn.sqhk.co/fopeziriga/fLicPEC/suzuni.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/gchdjaG/lolegafofapolad.pdfIn PDF document text
    • http://oneitstore.pro/what_is_a_scientific_paper_format8gdmj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422180/normal_5fdac0003f88b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_604b87658b2ef.pdfIn PDF document text
    • http://bottlechainworld.com/xavuxawixexojalezafetowixr0gzt.pdfIn PDF document text
    • http://datinge.site/did_you_hear_about..._math_worksheet_answers_pg_95028t9.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/kosamupim/free_1_grade_reading_worksheets_printables.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/why_is_my_air_compressor_not_turning_on.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/what_is_the_book_a_bad_case_of_the_stripes_about.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/toward_a_critical_race_theory_of_education.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/oak_laminate_veneer_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/60858855721.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/budget_planner_spreadsheet_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/60873724205.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/chocolate_amargo_informacion_nutricional.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/7274969767.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/wansview_w4_setup.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_off0000fbd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD5 5140 bytes
SHA-256: 3676e8fa9372744901b57559d8c0026298f44f60f5faf3b7e1be30556b50ede1
font_01_sfnt_off00010d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D63 10504 bytes
SHA-256: fbcd0ddaef31338827ea40945717f0ea54aa1ae0835f5b22652cab2b8f607cb0