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

Static analysis result for SHA-256 ca8e04fc3ebb3446…

MALICIOUS

Office (OLE) / .PPT

68.0 KB Created: 2020-06-22 22:56:34 Authoring application: Microsoft Office PowerPoint
MD5: 81bcab49d38199e032326421f33a1287 SHA-1: 40794790c5eb7ec8732a8ec457c73a798f85dfcc SHA-256: ca8e04fc3ebb34465c135b54fabe7138acb644d656474bd3cb725cec2917b76b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell

This PowerPoint file contains VBA macros, including an Auto_Close macro that utilizes the Shell() function. This indicates the macro is designed to execute arbitrary commands upon closing the document. The presence of the Shell() call and the Auto_Close execution token strongly suggests the macro's purpose is to download and execute a second-stage payload. While a URL was extracted, it was flagged as confirmed benign, so the specific payload delivery mechanism remains unclear. No specific family could be identified.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • 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 http://%40%40%40%40%40%40@j.mp/asdghasd567asdgh

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
4b6f62c7b25b5f414b9fd0d8fcdec4e756f6a6ba53912a3f939e18b2abe72ca1
vba-macro oletools.olevba.extract_macros (decoded VBA source) 558 bytes