Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d27905416237ea6…

MALICIOUS

PDF

78.2 KB Created: 2021-03-31 21:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9b05c1a33e30301f001d2d9bc30348ca SHA-1: f0cb20cb087085054d819e4605c5f4a92908ef46 SHA-256: 6d27905416237ea6b3aa8d47c5992e698b5a0a825b74cae1e4dd96974d7c1029
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is highly suspicious. The document body, though heavily obfuscated, appears to reference a book title, suggesting a social engineering lure to trick users into visiting the malicious URL.

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://soxebez.ru/strik?utm_term=nora+roberts+of+blood+and+bone+sequel PDF link annotation
    • https://cdn.sqhk.co/wumidimux/MGjdgdg/archery_competition_malaysia_2020.pdfIn PDF document text
    • http://vuroxinizona.scienceontheweb.net/5942364470.pdfIn PDF document text
    • https://cdn.sqhk.co/faroziwe/dTvjfic/at_t_photo_storage_online.pdfIn PDF document text
    • https://cdn.sqhk.co/navozaxezini/xhgbVge/world_war_3_movies_on_netflix.pdfIn PDF document text
    • https://cdn.sqhk.co/rekutadis/hhihjb5/gitedunelopenobubimaru.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/ehadgfl/3777052737.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/jjdNv55/66268228730.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/jbheBnE/water_surfer_car_simulator_3d_games.pdfIn PDF document text
    • https://cdn.sqhk.co/janogoxuke/fbu5h5V/vikings_at_war_mod_apk.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/efd231c1-b9d7-4d43-a22a-6052119eede7/xutokumipikamadovodibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c278dde-6ca2-482c-8c7b-7b2448893567/96595694586.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8985a26-3e58-4255-942a-0695068dde30/oogway_ascends_sheet_music.pdfIn PDF document text
    • http://bumejefivoxigo.myartsonline.com/30971500090.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/lesemeridoselobupoxofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a785f01-e3f3-4cc8-a310-2b977d3d1e73/java_interview_questions_and_answers_for_experienced_5_years.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/new_australian_passport_application.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cae3259-4a50-4bd4-b6c9-96f5cc3e281b/what_is_eoc_test_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5886929d-40b4-4274-8929-070c1ee4cb98/casio_ctk_7200.pdfIn PDF document text
    • http://rakixufemagotut.atwebpages.com/9285432969.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/256f8c6b-288b-41f0-a455-63e1da2c6f46/viwikiji.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_off0000f4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A3 5136 bytes
SHA-256: 72a0813502fe00bac0812180f1e94a1e33536432749e370ad178a0c090f0dc8b
font_01_sfnt_off00010622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10622 10856 bytes
SHA-256: 31a6731456eb53b1f0215292d807d2dddf9efabbcabf15245b54550de5bb5187

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