Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea5838f057e6573a…

MALICIOUS

PDF

98.6 KB Created: 2021-03-16 10:35:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d4e51e2162e27e29fc0c8639f9d089dc SHA-1: 5894d996f5319933a89d6a825f0775df8cdbc15d SHA-256: ea5838f057e6573a77cba0bfc31730c54f118a0877b650cb80526792a575a045
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 0.9993

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://midufefew.ru/123?utm_term=3ds+encrypted+roms PDF link annotation
    • https://cdn.sqhk.co/viwiratoposu/AhhlQhg/87389061217.pdfIn PDF document text
    • http://zumofujewor.iblogger.org/what_is_diverse_learning_programme_matrix.pdfIn PDF document text
    • http://kaxogibigonubib.22web.org/excel_vba_msgbox_yes_no_default.pdfIn PDF document text
    • http://tufataf.22web.org/dikirugag.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/ivgfP2W/xutodememokosajegabe.pdfIn PDF document text
    • https://cdn.sqhk.co/lazaxosu/qibgdsR/80699191043.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/puretulenuza/school_incident_report_form_teachers_nsw.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/nationalities_in_spanish_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/pencil_drawings_of_animals_easy.pdfIn PDF document text
    • http://puderumito.rf.gd/dyson_cinetic_big_ball_total_clean_upright_vacuum_review.pdfIn PDF document text
    • http://molojagevatabu.rf.gd/37495095420.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/xiaomi_mi_tv_box_3_android_7.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/4th_grade_addition_word_problems.pdfIn PDF document text
    • http://lobosubutuke.epizy.com/rirunirosekiwoxewaguk.pdfIn PDF document text
    • http://dawefegoboxe.rf.gd/89695355352.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/xaxaruzakimoxulisex.pdfIn PDF document text
    • http://sabuxixu.epizy.com/sixamilutumorelodaf.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/79481198304.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/tufefurujos.pdfIn PDF document text
    • http://sudabepogulu.rf.gd/91502018581.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/andi_mack_theme_song_sheet_music.pdfIn PDF document text
    • http://mowumurukilada.rf.gd/77252041464.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000110d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110D7 15272 bytes
SHA-256: 4870872c73566e9bb123cbfeac3969d790c7606a9bd2924e3b3789381a057d10
font_01_sfnt_off000142c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142C7 5148 bytes
SHA-256: 58de3a899b4b8208b21f285d827a20206e4376b04373357a86b87059474eb41f
font_02_sfnt_off0001543f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1543F 12672 bytes
SHA-256: fd66b5ebec272277ef03ecd08a03dce03531d5ff9664fb0a59c0e55444d17579

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