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

Static analysis result for SHA-256 4a86611c39021090…

MALICIOUS

Office (OLE) / .PPT

157.0 KB Created: 2022-09-29 19:35:44 Authoring application: Microsoft Office PowerPoint
MD5: 20447f22021791f7d704aec7362e64ee SHA-1: 696060638aef5eee08c27b5c164f92637b7aa4f8 SHA-256: 4a86611c390210901864e77c81b3da1929c9b49d738916a691c45e67763e51a3
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The presence of a critical ClamAV detection and high-severity heuristics for VBA macros and PowerShell execution strongly indicate malicious intent. The Auto_Close macro and VBA p-code auto-execution suggest an attempt to run code upon opening or closing the document. The embedded URL, though marked as benign, is included as a potential IOC. The primary attack pattern involves leveraging VBA to initiate PowerShell, a common technique for downloading and executing further malicious content.

Heuristics 6

  • ClamAV: Doc.Malware.Valyria-10007976-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Valyria-10007976-0
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close 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.
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
3ae5449d65e0df1ea06520db0c71c6461cedce42f05c1b6f327eb1094e38f0fa
vba-macro oletools.olevba.extract_macros (decoded VBA source) 4615 bytes