Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5fbb7b0952845e…

MALICIOUS

PDF

80.2 KB Created: 2021-04-22 07:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 666f953dc3e80a112e575deb39fb859b SHA-1: e6dc94b81b23e50ce5ca73ced5813e35f4b83fa1 SHA-256: 0d5fbb7b0952845e59e6e182e6ce3bf89fbf767d0c2eec6eb4e80897927a06ef
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-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://dafemum.ru/strik?utm_term=how+to+eat+healthy+when+nauseous+during+pregnancy PDF link annotation
    • http://dudipoviju.22web.org/cateter_venoso_central_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380086/normal_60543867d41ff.pdfIn PDF document text
    • http://teplotronic.ru/premiere_pro_free_presetsi0tv8.pdfIn PDF document text
    • http://zunikezat.22web.org/cytology_quiz_with_answers.pdfIn PDF document text
    • http://itayoga.space/pink_panther_trombone_sheet_music_freec9q3q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446914/normal_602b56cef2ba0.pdfIn PDF document text
    • http://meblik.su/robert_mckee_story_substance_structure_style_and_the_principles_of_screenwriting8t7uy.pdfIn PDF document text
    • http://natiral.space/81233829374rksw7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_6022e72e1324a.pdfIn PDF document text
    • http://reduslim-europa.site/768949928845ii5d.pdfIn PDF document text
    • http://prodson.fun/ruderizup15.pdfIn PDF document text
    • http://zootime.store/64367432685w7drb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422371/normal_5ffc1b511e179.pdfIn PDF document text
    • http://flash-sar.online/dudinagokajajv1bs.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/tuzakifezara/buriju.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/brittle_star_short_description.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/heart_healthy_diet_to_lose_weight_fast.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/a_series_of_unfortunate_events_book_13.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/driving_ed_vocabulary.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_off0000fb43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB43 5488 bytes
SHA-256: dc82755ac607c88659efc8ce83217dec1bc05d90fe777693be2868f19759cb08
font_01_sfnt_off00010e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E01 11012 bytes
SHA-256: 2deb4ff3414b1442021bf1112ccac8db3c61812b403a8d4f62ca9cde6010851a

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