Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e356becec611966…

MALICIOUS

PDF

62.8 KB Created: 2021-02-17 21:27:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 161a279574386415dab3cbc803a738bb SHA-1: d86e5907003922e1f3f9b47d9d0f970883aa86b5 SHA-256: 2e356becec611966bc8314445536dd0f87b50ca12ee7455e61c64b67cce6599c
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://jacksth.ru/wix?keyword=label+parts+of+a+tree+worksheet PDF link annotation
    • https://fozaronu.weebly.com/uploads/1/3/5/3/135349809/dinoruk_kiwusati.pdfIn PDF document text
    • http://teasmall.space/balistica_tecnica_y_forense_cibrian6ni0a.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/QjlgefG/jurassic_world_survivor.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/BZjfhdR/xategadepafomovubudixo.pdfIn PDF document text
    • https://xexidizufom.weebly.com/uploads/1/3/4/5/134508107/1597679.pdfIn PDF document text
    • http://ouily.xyz/panchatantram_telugu_movie_songs_freeocoou.pdfIn PDF document text
    • https://zasuzepomuban.weebly.com/uploads/1/3/4/6/134627511/314237.pdfIn PDF document text
    • http://itrom.fun/crane_slew_bearing_rocking_test_results81peb.pdfIn PDF document text
    • http://tameenegypt.com/322102869061wub1.pdfIn PDF document text
    • https://nurafotupitu.weebly.com/uploads/1/3/4/4/134495453/5053294.pdfIn PDF document text
    • http://guromufupadaf.iblogger.org/gaxotoxibizotelekedila.pdfIn PDF document text
    • https://cdn.sqhk.co/ginijetemepa/ifhajdz/79257949233.pdfIn PDF document text
    • http://kvyovk.xyz/simatic_wincc_runtime_advanced_v15_manual3k7qj.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/fghigjf/marujatilini.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/bawalidamovidud/76896126275.pdfIn PDF document text
    • http://konovovu.rf.gd/88168869893.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/safety_data_sheet_for_chemicals.pdfIn PDF document text
    • http://pudubekij.epizy.com/cultural_anthropology_asking_questions_about_humanity.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/66097108580.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/queen_size_fitted_sheet_dimensions_in_inches.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/ontario_boating_licence_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/coc_game_apk_for_pc.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_off0000b9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9F6 5228 bytes
SHA-256: cd18c3d35049cf1130177f1f94300376fafafeed38c6a91a1ee876e7fcf59052
font_01_sfnt_off0000cbc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC9 10060 bytes
SHA-256: b479e3aa301a9b657f2ec9d99b84a03021f9f91d98d04567bdf518187021508c

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