Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6294f7272c7432…

MALICIOUS

PDF

94.9 KB Created: 2021-02-20 13:29:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 73643a3dfebc64f197c2e6f35cc18d1e SHA-1: 52f379d9fcdfd01b71fdabcce14b63316278af9a SHA-256: 8e6294f7272c7432bf14afb24746cdfb7d37fefde660517889cb8abee081bd53
104 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The presence of a 'download button' heuristic further supports the phishing lure. Although no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/strik?utm_term=forex+price+action+scalping+bob+volman+pdf+download PDF link annotation
    • http://discount50.pro/jegamutugakomeroba1v8yg.pdfIn PDF document text
    • http://tixshopclub.fun/33_days_to_morning_glory_free_download3vlc5.pdfIn PDF document text
    • http://limaxinsto.xyz/eso_silks_of_the_sunpjfev.pdfIn PDF document text
    • http://naxawibumeso.iblogger.org/riwakedo.pdfIn PDF document text
    • http://yewes.space/japamavefosipupigilitixiyh267.pdfIn PDF document text
    • http://clebohets.xyz/simuzubediwini4ln2d.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/gisujubolidine/dokivorini.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/15658061817.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/31203429256.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/lujikugenujej.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/jaguar_car_hd_wallpapers_1080p.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/95670919872.pdfIn PDF document text
    • http://ramawotinejog.epizy.com/switch_pro_controller_skin_template.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/jarituxinebug.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/telugu_calendar_2019_chicago.pdfIn PDF document text
    • http://radujexoxetapil.epizy.com/bcom_degree_certificate_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/paras_civil_code_obligations_and_contracts.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_off000133b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133B4 5792 bytes
SHA-256: 7a7dc596dd498ce83ffb1cd34c3d2d4dbcb4a906e4ecbd72b83a8f441b8eec2a
font_01_sfnt_off00014769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14769 11340 bytes
SHA-256: 20ed4c35afa584cfc085315b5dd2e7f9395118d2633a323e6d226910a598781f

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