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

Static analysis result for SHA-256 2aed441feb0d38c4…

MALICIOUS

Office (OLE) / .DOC

243.5 KB Created: 2020-01-15 22:37:00 Authoring application: Microsoft Office Word
MD5: 41aa49b8c70ff8dc181d248e0d54dbc6 SHA-1: 1b5e9edc0edac0bfa932ac6bfc1f34284ff0041f SHA-256: 2aed441feb0d38c4c21858e907fb45a10a75f33c53158c64c67e85bab1e621c5
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The file is a Microsoft Word document containing a VBA macro that is automatically executed upon opening via the Document_Open event. The presence of a GetObject call within the macro suggests an attempt to load and execute external code. ClamAV detection confirms the malicious nature of the file. The macro's primary function appears to be downloading and executing a second-stage payload, although the specific URL or payload could not be determined from the provided evidence.

Heuristics 6

  • ClamAV: Doc.Malware.Chartres-7540846-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Chartres-7540846-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5c25959b38cab32ecf4cb36bf088a8cc5fafd65893f3fd86ea4e5d35830fa2e6
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10988 bytes