Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cda8379f90f9c1d…

MALICIOUS

PDF

70.6 KB Created: 2021-03-31 09:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fb357b37e37fe192afe5fbd3141f64f0 SHA-1: 5a21e3dfa4a25549b34b0ad20908d57716aec5d3 SHA-256: 2cda8379f90f9c1dfb21d577e836a6f2def2795493419e11cbcbfb727e0ade25
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 detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to contain keywords related to car sales, suggesting a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/aws?utm_term=2005+chevy+malibu+for+sale+houston+tx PDF link annotation
    • https://cdn.sqhk.co/roxirali/dB5gjif/adam_mchomvu_bwana_shamba_audio.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/ways_of_the_world_online_textbook.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/havmCif/best_game_live_streaming_apps_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/vidikusupegu/KYlgdAr/thief_city_all_loot.pdfIn PDF document text
    • https://cdn.sqhk.co/dipewoduge/tWhesia/18750660159.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/kotodur/91483964913.pdfIn PDF document text
    • http://gamelaluwer.myartsonline.com/convert_arabic_document_to_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6e1c11f-c15b-4733-a33f-6b262dd1f887/carry_on_size_suitcase_with_wheels.pdfIn PDF document text
    • http://xumuritikoxuk.myartsonline.com/pdf_watermark_remover_software.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9f1000e-50af-4a05-af40-b9358149b444/what_is_table_setting_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/tuzedikavimebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29af45c0-7ae8-4ab3-8263-e4965a908f3c/how_to_adjust_sensitivity_on_lorex_camera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/558665c7-5d1e-4d55-bb3e-f32b04147adc/does_mazda_cx_9_have_remote_start.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/strategic_marketing_management_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c958778-748f-4cb4-9179-c04195909774/zigetafesaxevafefezonekan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45eaa63e-f4b2-4a01-865a-aa27773c3076/21423477323.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/96268887447.pdfIn PDF document text
    • http://xiwexuxe.atwebpages.com/xizowagebedusozumuv.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/safari_browser_folder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50646d39-8a86-4854-b3bb-048256308d59/the_challenger_sale_matthew_dixon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2b91149-a7c4-40ef-8fb7-5a18b5b9a7d7/how_to_use_resistance_bands_for_triceps.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/zafomanonakajifegizede.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/4_basic_physics_equations.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/zozupazikodununeru.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_off0000d732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD732 5796 bytes
SHA-256: e5561983700b1a0192d0e74b0a342fb257122d43d0034661bb9526811528a305
font_01_sfnt_off0000ead1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD1 10040 bytes
SHA-256: 3f54991cf3edf0d9d36dcaae7e4f53c6df3d27abc706b0d5ba653156abb14541

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