Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a789200d0fa4516…

MALICIOUS

PDF

74.8 KB Created: 2021-03-11 22:24:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 7a4c158c269c9f377f3e4e7972c5a612 SHA-1: 5e339c273519e0f774d9b074eb2a8be0be1f82de SHA-256: 6a789200d0fa4516a4df535873bd5e2869c75f597594c104243c0221ec8c8b84
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, 'nipisod.ru'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were directly extracted, the presence of an external URI suggests an attempt to redirect the user to a malicious site.

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://nipisod.ru/strik?utm_term=our+lady+of+guadalupe+song+chords PDF link annotation
    • http://like-store.site/dyson_ball_animal_2_upright_bagless_vacuum_-_purplew7fqt.pdfIn PDF document text
    • http://zibujedi.iblogger.org/mosoremanubeduwox.pdfIn PDF document text
    • http://lassituda.online/27669095328bidcr.pdfIn PDF document text
    • http://daimontimur.org/online_text_document_to_jpg_converterbrrax.pdfIn PDF document text
    • http://badgesverified.com/minority_report_hd_movie0d1o7.pdfIn PDF document text
    • http://moneymaya.site/55920306728d0kzh.pdfIn PDF document text
    • http://evgeniy-semenenko.ru/nctb_books_of_class_5_freed7bdo.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/masevewi/rename_android_studio_project_name.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/pcso_lotto_result_6_45_march_16_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d03888dc-ff51-4f67-aebb-a23dad93b9fc/canon_mp240_error_code_p2.pdfIn PDF document text
    • http://fosadexovoz.epizy.com/7021490984.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/banished_guide_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/baking_sheet_meaning_in_arabic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/825bad81-367b-4a30-b621-adc9f4ba11a9/what_does_calling_a_bird_of_prey_from_the_east_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/bitwise_operators_in_c_tutorial.pdfIn PDF document text
    • http://jodewejuwuw.epizy.com/convert_to_word_nitro_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/gorowemexedokagana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11330ae6-9886-4cf6-a7ba-fe326ec74566/crooked_kingdom_book_series_order.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/data_analysis_report_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/nawopu.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_off0000e284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE284 5544 bytes
SHA-256: 3a8d56f756e1c162fe5f80090a41c7b86ebbc916d917cd547d9ecc04f38f03b6
font_01_sfnt_off0000f563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF563 12532 bytes
SHA-256: 42322945f99dbbc4867ced1d85ede9fd1b4ccaba677ecbbeea46003901b9be2c

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