Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 6698965fefdd0e4d…

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-22 15:17:00 Authoring application: Microsoft Office Word
MD5: c12b5a195b5a3f6ae8fe5ddaede5858e SHA-1: cb367b15bb96fe8d67632243b05b528ea35c8b2f SHA-256: 6698965fefdd0e4da0faecad2dfff4bae9b0371113409e9d1888465917aec066
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The sample is a Microsoft Office document containing a malicious VBA macro. The macro is triggered by the Document_Open event and uses CreateObject to execute code. The ClamAV detection 'Doc.Downloader.Logan-9781905-0' suggests it's a downloader. The macro attempts to download content from a URL, which is a common technique for delivering second-stage payloads.

Heuristics 6

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
cecccb4a1113767f9883636c8aa1a2de57ced4949da2d8bcaf50534e5e598b34		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18857 bytes

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