Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5fae5bb30e9800ec…

MALICIOUS

Office (OLE)

153.9 KB Created: 2020-09-14 22:09:00 Authoring application: Microsoft Office Word
MD5: b6b8b11885ab3941b2478333cf8795b5 SHA-1: 88fe7be86886886986d2907ab0cdb748f1e442b1 SHA-256: 5fae5bb30e9800ec137ead15679e59e39b70069c5a495f35874953f74cbd4c6c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a Microsoft Office document containing a VBA macro. The 'Document_open' macro is present and configured to execute code. Heuristics indicate the use of 'CreateObject' and p-code execution, suggesting the macro is designed to perform malicious actions. The macro appears to be obfuscated, but the presence of 'Document_open' and 'CreateObject' strongly suggests it attempts to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760527-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760527-0
  • 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
bf2dc6e4793502154f28a14458af4f5198ccc48932a5641a4c34f7f1fcdc0c82		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18582 bytes

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