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

Static analysis result for SHA-256 672ff26695a8675b…

MALICIOUS

Office (OLE) / .DOC

275.0 KB Created: 2024-10-28 11:26:00 Authoring application: Microsoft Office Word
MD5: cd15d4de345febfbd8ca36c547afe503 SHA-1: 3ae6477245328ea122c817e3d3fb01b5250c99ac SHA-256: 672ff26695a8675bdf14c971881759933f74dc4375f3b32e18199c1bbb18084b
362 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample contains a Document_Open VBA macro that utilizes WScript.Shell to create an object. This object is then used to download a file to the user's templates directory, which is then likely executed. The presence of Shell() and WScript.Shell usage, along with the HTTP download and execution heuristic, strongly indicates a downloader functionality.

Heuristics 9

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • VBA downloads and writes a file to disk critical OLE_VBA_HTTP_DROP_EXEC
    VBA reads an HTTP response body and writes it to disk (ADODB.Stream SaveToFile). Combined with the auto-exec/Shell paths this is a download-drop dropper even when the COM ProgIDs are built dynamically to evade keyword scanning.
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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
7e249108dd4e8e287008115388649c48ed6d57fd19bd8f4c89543d8b1fd2819f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 13025 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.