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

Static analysis result for SHA-256 225809cd86c55238…

MALICIOUS

Office (OLE) / .PPT

61.5 KB Created: 2022-11-29 01:11:23 Authoring application: Microsoft Office PowerPoint
MD5: 7273adaabc79853cf87d2b0dabf82bb2 SHA-1: ac9eb0fa21fa95ed6e0637c5576fbd647e268410 SHA-256: 225809cd86c552381cccf55702880bad90efac64b728340c74cf1a20c9bcd3b6
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a PowerPoint presentation containing a VBA macro. The 'Auto_Open' macro is present and configured to execute a shell command, indicating it's designed to download and run a secondary payload. The macro source is 773 bytes and the 'macros.bas' file was extracted. The embedded URL was confirmed benign, so the primary IOC is the macro file itself.

Heuristics 5

  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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 https://bitbucket.org/!api/2.0/snippets/newwork123social/y7rx8q/d63bb82dd5a7a2d8c98669111e9d99aaf3871d1f/files/nanapersonal.txt

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
3cc6363bc20e9ed53c138a012f0df9b01192eb64b06be9e2180795481e9e96cf		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 773 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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