Malicious PDF — malware analysis report

Static analysis result for SHA-256 04fa642dc1fd0a70…

MALICIOUS

PDF

73.6 KB Created: 2021-02-17 12:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: ff34461963122219c590d370fc98d55e SHA-1: d80135bfe7c1896617db549d86770434b6ef44ff SHA-256: 04fa642dc1fd0a70ee07dc4eecd70cab36704a5376ebaad6aa065d31d51a0682
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a phishing site, disguised as a setup guide. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to a malicious domain for further exploitation.

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://baarspo.ru/strik?utm_term=how+to+setup+echo+plus+2nd+generation PDF link annotation
    • https://cdn.sqhk.co/gawagunikuw/cOjjihJ/app_vault_health.pdfIn PDF document text
    • https://cdn.sqhk.co/mugegiduveb/ZjhToix/arcade_soccer_games_1990.pdfIn PDF document text
    • https://cdn.sqhk.co/xudekutof/cAid4gi/lokicraft_para_pc_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/EhidIkT/18886981358.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/ehe1PBw/puniwit.pdfIn PDF document text
    • https://cdn.sqhk.co/golizojuw/PNmjhzI/52200815530.pdfIn PDF document text
    • https://cdn.sqhk.co/nupopobax/j9iad01/tiktok_download_free_online.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/genijusemu/certificate_of_origin_form_for_usa.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/abbyy_finereader_with_crack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/amperometry_ppt_slides_free.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/21560334036.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/78101529718.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/76519133508.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/crusaders_of_light_paladin_dps_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/whatsapp_status_love_failure_songs.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_off0000dffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFD 5520 bytes
SHA-256: 78bd23719cf570e41d92b4d24c72fff644175f59d02992920f76fb984d38eab3
font_01_sfnt_off0000f2cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CC 10768 bytes
SHA-256: 0719d7ba305cb655c769ff228b17d9d6b2f886e57f6a50cefa8295a723fbff33

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