Malicious PDF — malware analysis report

Static analysis result for SHA-256 274ee496e54a3939…

MALICIOUS

PDF

95.0 KB Created: 2021-02-13 06:25:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e119fb2818bc29e297357f209099a002 SHA-1: 204e40db2a3a76020cd1a6de5eb816eb5c7765d2 SHA-256: 274ee496e54a3939f600abc9d5331ee6941a8dd4ef394f4ec450a68f8872d0dd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://leonvi.ru/wix?keyword=irobot+looj+330+gutter+cleaning+robot+youtube PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382974/normal_601262e3e8de2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409628/normal_60106db003a1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501231/normal_5fcf6eb231e95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470019/normal_601e50f55030a.pdfIn PDF document text
    • http://mp4.design/sonic_all_stars_racing_transformed_joystick_controlspydgw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415962/normal_5fdae33579e5e.pdfIn PDF document text
    • http://startovaya.ru/anandam_movie_hdn1z86.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420036/normal_5fde65339e885.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446770/normal_60092763903c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477892/normal_601f723de7f7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414515/normal_5fcc3a2fd2dab.pdfIn PDF document text
    • http://podjem2.club/formation_chef_d_entreprise_8wdxkp1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5fe62cd671542.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/movie_counter_dual_audio_720pjaf3z.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/rujabepifar/free_printable_father_s_day_card_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/golezomejov.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/cesc_bill_online.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/gedug.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_off0001358a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1358A 5352 bytes
SHA-256: 56bda529ba2a4f335c1048a37739d06e395d2a459c848d89721899dc4ae24fcb
font_01_sfnt_off000147dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147DD 11348 bytes
SHA-256: f3eb7a48b25c0acf10d5945ebd2b5e17c8dbe7c540d2b1741fa2b36f6c8ba06f

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