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

Static analysis result for SHA-256 0ff290d3324f7ac8…

MALICIOUS

Office (OLE) / .DOC

775.0 KB Created: 2021-09-14 21:51:00 Authoring application: Microsoft Office Word
MD5: 1b1be3af95dad39ff0e10905daa065fd SHA-1: f4cb642b3d212da7424a580b04ab156192051139 SHA-256: 0ff290d3324f7ac8bc96a1a242ec02bb26dcde1d73d10fdee55011d8b6e985ff
182 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious OLE document containing a VBA macro that executes automatically via the Document_Open subroutine. The macro utilizes Wscript.Shell and GetObject to create an object, likely to download and execute a second-stage payload. The presence of the Document_Open macro and the use of Wscript.Shell strongly indicate a malicious intent to compromise the user's system.

Heuristics 6

  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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
7693a461c03e23c19012e3ca7608a0856fc05a3f7879f4285b47f89884e8e594
vba-macro oletools.olevba.extract_macros (decoded VBA source) 13978 bytes