Malicious PDF — malware analysis report

Static analysis result for SHA-256 29741c8ae3da24b4…

MALICIOUS

PDF

71.4 KB Created: 2021-03-24 01:26:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0074788a940d62db20dbec9af812baea SHA-1: fa55b208edf2a49bb7f5afd3a3388632349a0fba SHA-256: 29741c8ae3da24b4ad7358bdf7ee481433dd94207c4eb0c700a03bf35caa9adc
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to 'https://seumenha.ru/wix?keyword=mousetrap+catapult+blueprints', which is likely a phishing lure. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, potentially for credential harvesting or malware delivery.

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://seumenha.ru/wix?keyword=mousetrap+catapult+blueprints PDF link annotation
    • http://energierecrute-emplois.com/1653758047m6hkk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5fe6876d61da8.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/jeVhjeV/spirit_halloween_animatronics_pennywise.pdfIn PDF document text
    • http://copyrightviolationcenters.com/47916024895z7mxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426066/normal_5fd86151c2316.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450421/normal_5fcf9e4b2c40f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448750/normal_5fc71d4a89321.pdfIn PDF document text
    • https://cdn.sqhk.co/wesuwajil/idDoc0B/sun_tzu_art_of_war_history.pdfIn PDF document text
    • https://cdn.sqhk.co/neratimo/dsjjRky/4856116150.pdfIn PDF document text
    • https://cdn.sqhk.co/fopikudapom/iipgejc/wofejibibes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446280/normal_5fd375fce3b15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366401/normal_60378c8702cc9.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/vjihbXb/97397842922.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/84e15016-f57a-4b71-a00b-bb567f43715d/zijigopox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ca9615f-d02a-4c0c-988b-bfcb467dcf1f/punctuation_worksheets_for_grade_7_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/593b42f8-3c99-40bc-8c89-7c2c0012c987/how_do_i_program_my_samsung_aa59_remote_to_dvd_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b17a8afe-1168-4508-83b1-74928559283e/samosidowipejufox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18d2f2a5-9bab-4484-8e4d-933d6a0cf5f8/1878175192.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/254f72b9-3344-47c6-94de-19c104297cc3/book_of_jasher_free_download.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_off0000db72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB72 5072 bytes
SHA-256: fd1c9589c42c273e40c93f1a0c195f8e8cc64db25c59a1097746c322053a1837
font_01_sfnt_off0000ecc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC8 10472 bytes
SHA-256: 14a49079818af703edadcda8d7d4ce62c396129051beddc269ecb326919d3b15

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