Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c2fd7ec5729828d…

MALICIOUS

PDF

74.0 KB Created: 2021-02-26 07:20:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0d82c26720f651461e38a0251943f3b9 SHA-1: 0642e3b067f4c48fb601cbfa82a44f84dbc15f4e SHA-256: 1c2fd7ec5729828d7d9c1aed752f456e1f6493af518c97c0cd91cccfe51d4b81
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=idle+heroes+mod+apk+private+server+2020 PDF link annotation
    • http://famozosivupiwij.sportsontheweb.net/our_man_in_havana_audiobook_youtube.pdfIn PDF document text
    • http://mawuforoximite.22web.org/42039448460.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/megelugik/king_platform_bed_low_headboard.pdfIn PDF document text
    • http://voratibix.rf.gd/90507219461.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/all_of_me_violin_solo_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/chopin_nocturne_9_sheet_music.pdfIn PDF document text
    • http://kagurajujit.rf.gd/notorious_big_albums.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/conservation_of_mass_balancing_equations_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/identifying_author_s_purpose_worksheets_3rd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/old_spice_company_history.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/42612716237.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/square_root_of_91_in_radical_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/somavisexejavulunonilinov.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/bernese_oberland_maps_and_visitor_information.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/bosepaxatonufowafoko.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_off0000e7a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A8 5536 bytes
SHA-256: cbc86617555efb325f9a38f09566d72c5822375aaa06e0c2c7d18276f1e06fa5
font_01_sfnt_off0000fa48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA48 9640 bytes
SHA-256: 70f334cd4b4a465d9da852be9d52c815a08acdb5bed13952f4f5f07aa235a445

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