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

Static analysis result for SHA-256 6aac95dd3f2a6b9c…

MALICIOUS

Office (OLE) / .DOCX

156.3 KB Created: 2020-12-30 18:32:00 Authoring application: Microsoft Office Word
MD5: f0925ad9a32062c9c93d89f17a138f96 SHA-1: d2d32a56aacfd9b6ae4631015bfdff40d906cd16 SHA-256: 6aac95dd3f2a6b9cdc5ddfbda6e548ab8d93a61f48640d3a0a98a312fad42e56
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059 Command and Scripting Interpreter T1204.002 Malicious File

The sample contains a VBA macro that is automatically executed upon opening the document. This macro utilizes CreateObject to interact with the file system, creating temporary files with seemingly random names and paths. The ClamAV detection suggests this is a downloader, likely intended to fetch and execute a second-stage payload.

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
e8d3f7d8d02f0b30fe9a4f739a77064bdfd79f1fb249409f6cc7dd9e6c88bf62
vba-macro oletools.olevba.extract_macros (decoded VBA source) 6622 bytes