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

Static analysis result for SHA-256 6a089a7df35eeb01…

MALICIOUS

Office (OLE) / .DOCX

211.4 KB Created: 2020-10-16 06:01:00 Authoring application: Microsoft Office Word
MD5: b8f700225c1d8c36e3ccd274b0121ea4 SHA-1: a6eabe7d224a1cf57382ba5c0f19b89234c23a7e SHA-256: 6a089a7df35eeb01c1847b3ea416d218facf9f0a2165aff4b4fbd265b64d20ab
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro is configured to execute automatically upon opening. The script utilizes 'CreateObject' to likely download and execute a second-stage payload, as indicated by the ClamAV detection name 'Doc.Downloader'. The embedded URL is benign, but the macro's functionality points to a downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
3863408a8bdeee0ec9a7fd53b63559adf9564fc8373ad4e3bb83f95fe3393045		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15324 bytes

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