Malicious PDF — malware analysis report

Static analysis result for SHA-256 588449b795bd066e…

MALICIOUS

PDF

82.4 KB Created: 2021-04-22 11:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: b7dd7773590b5ec0319b55fe7914fa42 SHA-1: f7cb8811f1b04f88f7f019a10946b5b3896a2dd7 SHA-256: 588449b795bd066e1ae6fdd4f0763b9adfe3510b32f15e0716b2b91540dee846
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, likely intended to phish users. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/strik?utm_term=what+is+stock+market+crash+in+great+depression PDF link annotation
    • https://cdn.sqhk.co/rovonoset/jim01hb/51384002630.pdfIn PDF document text
    • https://cdn.sqhk.co/zazerejaxu/ihfgfs1/25_amazon_gutschein_code_free.pdfIn PDF document text
    • http://rebezun.mygamesonline.org/33557233711.pdfIn PDF document text
    • http://woberate.getenjoyment.net/composite_materials_journals.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/netflix_film_computer.pdfIn PDF document text
    • http://xafibejijopo.atwebpages.com/deniwudomarafazamujal.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/jititetototikirowuxupe.pdfIn PDF document text
    • http://dopovis.myartsonline.com/78672366311.pdfIn PDF document text
    • http://tulifal.onlinewebshop.net/1st_grade_reading_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/86462231450.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/entourage_season_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/hips_plastic_material_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2a4288a-7cfa-45f5-ade0-0537279b7e7b/end_of_the_world_song_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f909511-e4d7-429a-8e2b-66e695a1c39c/48520099220.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/excel_vba_set_variable_to_named_range_value.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/zatadebefudakefizawifazob.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/bijuzow.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/visite.pdfIn PDF document text
    • http://mubodadekutaxim.atwebpages.com/rekazokegenasokopaxopiper.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/mobazol.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF584 5320 bytes
SHA-256: 592e475cdc204d9257c54ed98a6e4d4dc4f164dc5bd362dd5ec0e563a0faf9f9
font_01_sfnt_off00010778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10778 11352 bytes
SHA-256: cd1fc2967a9bb23acf7dc50d77772216651390e4ff2afe89e26bdf2681e1bcbd
font_02_sfnt_off00012de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE8 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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