Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f4e25846146c23…

MALICIOUS

PDF

66.9 KB Created: 2021-02-23 12:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 65133e61743e51adcb3f3b526ebae4bd SHA-1: 897c593704fa6e44436af24ab012ebbaea9a5a8b SHA-256: 25f4e25846146c2398e69ff12b6e3b06f3aea2710ff402f476f49306cf2d5d69
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-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://leonvi.ru/wix?keyword=traditions+and+encounters+volume+1+pdf+free PDF link annotation
    • http://hookup753.fun/900365701858dgrk.pdfIn PDF document text
    • http://businesslinecenter.com/free_latest_bollywood_movies_siteshu8af.pdfIn PDF document text
    • http://notdull-eng.online/37187187572t9csq.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/ii86hcB/traducir_picaporte_en_ingles.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/megodipewukitoj/mythic_odysseys_of_theros_gods.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/57853630477.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/golf_tournament_fundraiser_flyer_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/web_layout_templates_free.pdfIn PDF document text
    • http://xokudofek.epizy.com/how_to_setup_bose_acoustimass_10.pdfIn PDF document text
    • http://mawuxukajenup.rf.gd/49052339654.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/21599122663.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/bride_svg_file_free.pdfIn PDF document text
    • http://xoxiposewarewa.epizy.com/75665044917.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/directv_channel_guide_printable_version.pdfIn PDF document text
    • http://kasarokoxakuke.epizy.com/nigevokajometubap.pdfIn PDF document text
    • http://demumerip.rf.gd/label_template_word_document.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_off0000c9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F8 5360 bytes
SHA-256: 72a5575572130d97139adfe7c8efcb659d55d133197b41157cd95ec44bffdb7e
font_01_sfnt_off0000dc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC26 9940 bytes
SHA-256: 455f0fed04657f9f6edb000b04d54a2b90491c5234a92a35db4209be7255e9cf

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