Malicious PDF — malware analysis report

Static analysis result for SHA-256 576179b6a9963ad6…

MALICIOUS

PDF

76.1 KB Created: 2021-04-07 23:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8154817c7a97ec726bc9d959b57e16b5 SHA-1: 9bfbae3f98de34609608295782aa449b2da79ac5 SHA-256: 576179b6a9963ad646756fc69166477c6baa2e442fa120c862038666703d76e5
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://resalured.ru/wix?keyword=great+vibrations+waves+worksheet+answers PDF link annotation
    • http://leadtop.co/calculate_geometric_mean_formula_excelv36zb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369783/normal_5ffaa5ad4cccb.pdfIn PDF document text
    • http://f13x.xyz/belhaven_bay_surf_reportc2qqq.pdfIn PDF document text
    • http://wide-take.top/64722036189i86t9.pdfIn PDF document text
    • http://mabay.fun/bescherelle_anglaisf1gj1.pdfIn PDF document text
    • http://reflectionss.space/alejandro_casona_la_barca_sin_pescadors2ih5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5ff4cb61b9538.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/voropa/nice_guidelines_delusional_disorder.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/mexinabutizejeniz.pdfIn PDF document text
    • https://85ed388a-52e0-4e79-9737-9d4b769dda71.filesusr.com/ugd/bb10c5_f3bb8d594e00410c8daef3f36c2dd461.pdf?index=trueIn PDF document text
    • https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_44a2bde931524e6db7237113e9f8b385.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0b12067-3c10-4599-b3f5-a6b45eec773f/jotapimexi.pdfIn PDF document text
    • https://40ba1f7a-6e91-49bb-bbb8-dfbb40a2bc60.filesusr.com/ugd/22bf55_5a3918b76cb64021a63b09df04280a3f.pdf?index=trueIn PDF document text
    • https://4a5660cc-52a2-48ff-9acb-4b4f1704cb6e.filesusr.com/ugd/81868d_8cfa9145fb2a408d8a7659fa1db08902.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/39317229395.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/vubexuzudozudorer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/758e270d-963c-4e6f-b31f-6405927b6d3c/oral_b_pro_1000_crossaction_manual.pdfIn PDF document text
    • https://8b7199fc-a029-4910-8138-caee300d1cbd.filesusr.com/ugd/da8f68_685e390db5e445dfb3be134ce4a48e96.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/liftmaster_la500_diagnostic_codes.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_off0000eb71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB71 5128 bytes
SHA-256: ae53a62ad2a8f998986a4e17cb5f05e7ab6a4f037d8052114826f2bff16c6b4f
font_01_sfnt_off0000fcf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF4 11248 bytes
SHA-256: 555e022c8162bdf30f068828226a0e017c67457c8a5febfcfdf1921e65b52ee0