Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9e78705b8c05d6…

MALICIOUS

PDF

67.0 KB Created: 2021-03-03 16:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bc038e912bf10c43d0144d72292aeb5f SHA-1: 1032486517af02ccef7745406ac5e84dea9c13de SHA-256: 7e9e78705b8c05d6d14a8bf308e29d97ec080ef0a84ebb74c8c57f6be8ba4999
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/wix?keyword=dnd+5e+players+handbook+pdf+trove PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418574/normal_6008b368e3755.pdfIn PDF document text
    • http://zimarul.iblogger.org/e_commerce_template_free.pdfIn PDF document text
    • https://cdn.sqhk.co/ruperodu/bjfr3if/nosonixukazaruzatij.pdfIn PDF document text
    • http://zokidinodajives.getenjoyment.net/the_aleph_in_the_mirror_page_37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474478/normal_5fd1708f02fdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370064/normal_602b55e491d1d.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/gdibjcA/realme_2_border_light_app_download.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/jolozidabi/kubota_v3300_engine_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/blur_background_view_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/12094584792.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/information_technology_project_proposal_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/waxesilanovizobategaput.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_off0000ca04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA04 5616 bytes
SHA-256: 7a88dc0e79e8abe451b67e8ff6e287530e5013222bb2893481703a3a58187ae8
font_01_sfnt_off0000dd26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD26 10016 bytes
SHA-256: 6d14e5e0fb34b0ed92920ad58cfa471675236e6873f8665aeecac8cf3768efd3