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

Static analysis result for SHA-256 6466e59baac50c3e…

MALICIOUS

Office (OLE) / .DOC

155.1 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word
MD5: efcf392cea53b7869f8eb35c7c3242ed SHA-1: bb67bdf94d72782c43675893d7752f9b9df9c93d SHA-256: 6466e59baac50c3e485ef735c5bca53463cf2595b211ddd169dbe2b1866c4b70
242 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros. The 'Document_open' macro is present and configured to execute obfuscated code. This macro uses 'CreateObject' and 'GetObject' calls, indicating an attempt to run external code or manipulate the system. The presence of VBA macros and the 'Document_open' auto-execution strongly suggests a macro-based attack, likely intended to download and execute a secondary payload. The ClamAV detection name 'Doc.Malware.Ewtz-9765424-0' is included as an IOC.

Heuristics 7

  • ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15901 bytes