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

Static analysis result for SHA-256 9c2a7ce9f6319303…

MALICIOUS

Office (OLE) / .PPT

66.5 KB Created: 2022-07-27 01:30:34 Authoring application: Microsoft Office PowerPoint
MD5: 20428129c9b980c3e47bf7840fd63532 SHA-1: c27465712c27a0fe3e0738fd86a003d8fd4e2509 SHA-256: 9c2a7ce9f6319303399761122088a2c7c3afc6dd4fa7779579fe4f0803d8e92a
360 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1218.011 Signed Binary Proxy Execution: Rundll32

The sample is a PowerPoint file containing VBA macros. Critical heuristics indicate the use of Shell() and WScript.Shell, and a high-severity heuristic flags an Auto_Close macro with execution tokens. This suggests the macro is designed to run automatically upon opening or closing the presentation. The presence of 'macros.bas' as an extracted artifact further supports this. The primary function appears to be executing arbitrary commands via WScript.Shell, likely to download and execute a second-stage payload.

Heuristics 10

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Reference to mshta.exe high SC_STR_MSHTA
    Reference to mshta.exe
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close 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
  • Suspicious extracted artifact medium 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.
  • 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/warzonepro/RkEaa5/4ef58ce616172c96f017e43ebb3388cf1a96e8f9/files/manny11final

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
bc06a9324a4f9b773293dd0c5bdfa6419bae9d9d37c3bfdfbc2d1606fad602ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 940 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).

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