Malicious PDF — malware analysis report

Static analysis result for SHA-256 429e45b80da59018…

MALICIOUS

PDF

79.0 KB Created: 2021-03-06 15:44:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 793d43e420fef67413d0155bc591e682 SHA-1: 517a7614268ed1378ce719c62bb4d0077dd87f61 SHA-256: 429e45b80da59018db9fe1c2889719181fd95d97730555d32f04ead372c48bd6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9996

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://resalured.ru/strik?utm_term=what+is+teaching+english+as+a+second+language PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402938/normal_601bc2a7d20b1.pdfIn PDF document text
    • http://baranaydin.org/40744348679tzhy7.pdfIn PDF document text
    • http://pubgmobiie.com/libevozodumoriagcnk.pdfIn PDF document text
    • http://3bureaureport.info/plc_controller_software_free_download1g05l.pdfIn PDF document text
    • http://buylettersonline.com/what_supplies_do_i_need_for_a_cricutnnbsv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382965/normal_6038376e690d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404121/normal_5fdd6e36b2af6.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/dyLouBR/warositav.pdfIn PDF document text
    • http://daating19.site/dell_inspiron_n5010_dc_jackx7pyn.pdfIn PDF document text
    • http://leyloften.online/msica_de_los_caminantes_para_descargar_gratism281d.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/h0Xf0gh/faxisok.pdfIn PDF document text
    • http://beremoter.online/72113779527gcgem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/b0a9009e-2bfe-4e87-bd04-cc635c159468/18407901925.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/zugame.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/banjo_kazooie_spiral_mountain_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d1e3b97-b5b8-4e06-99c7-28203b1baa90/how_to_write_assessment_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/28426306726.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35b5f9cc-ae9c-474a-9aff-249d56abfc2c/iced_caramel_mocha_dunkin_donuts_calories.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a72176d-7de7-4951-a1c4-98c5858f023f/proform_exercise_bike_seat_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/laravel_number_format_in_view.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/83242502991.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eadb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADB 5000 bytes
SHA-256: 2b612ccd0b967834e665be8ac5f3f1cba930487b7a95ecc936a9c92dc9161251
font_01_sfnt_off0000fbd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD9 10812 bytes
SHA-256: e8f34b193287b965dbb9e5a08a20efc247c8b243d4f2dc9ae94aa21fdde60cf0
font_02_sfnt_off0001204c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1204C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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