Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03dc055d4a7cd6a…

MALICIOUS

PDF

70.2 KB Created: 2021-02-03 04:00:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: c9622fc4c376879c90659661b156f5e2 SHA-1: cee95a97934bb1a6115daf04456fc60d06b020eb SHA-256: d03dc055d4a7cd6a2e4687d194fcfc80a1aa3dac0620bec924728f8a4de3a3ef
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to 'https://leonvi.ru/123?utm_term=hope+island+inn+by+the+sea', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create documents for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=hope+island+inn+by+the+sea PDF link annotation
    • https://cdn.sqhk.co/veletafi/g2jbL9x/cat_run_2_game_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476947/normal_5fda10bc3db06.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/WPricW9/game_creator_software_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376103/normal_5fdb01b1dd83c.pdfIn PDF document text
    • https://cdn.sqhk.co/joxesinejag/gg5chj1/chicken_run_2_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/lukedivibeb/hdhaBPw/spelling_and_grammar_check_word_change_language.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474231/normal_6005ba3ad89da.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/giljdif/jibuwedinituledafi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474176/normal_5fd18ea73a02f.pdfIn PDF document text
    • https://cdn.sqhk.co/velizovatim/iegeJib/play_day_bump_and_go_bubble_dinosaur_instructions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408584/normal_5fcb5cee21c38.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5fcf83631a9a6.pdfIn PDF document text
    • https://cdn.sqhk.co/javomekoru/Xjayhc4/18469224527.pdfIn PDF document text
    • http://tefosewun.22web.org/171647624.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joriboka.epizy.com/ff13-_2_fragment_guide.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_off0000d357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD357 5156 bytes
SHA-256: 26124f1feca4c377840819bf58b989688f63e47bfeb2c09738d89af1ad73ed6a
font_01_sfnt_off0000e4da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DA 11512 bytes
SHA-256: eddcd0476bb081ed0a0eed767a83d72fad5ee639daeb2645321fe297b93db057

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