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

Static analysis result for SHA-256 7fd7b8473864c04d…

MALICIOUS

Office (OLE) / .PPT

62.0 KB Created: 2022-06-27 23:07:40 Authoring application: Microsoft Office PowerPoint
MD5: 292a0896aa4a1374c00aa565bc87ddf7 SHA-1: 8d1593d7f5181343d78e7a4a300dff0a750a6b1d SHA-256: 7fd7b8473864c04d6a410825fea115f79c22e2f6f3471a0769b448464fdf6776
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1218.005 System Binary Proxy Execution: Mshta

The file contains VBA macros, specifically an Auto_Close macro that executes mshta.exe. This indicates an attempt to download and execute a secondary payload from an external source. The presence of the Auto_Close macro and the execution of mshta.exe are high-confidence indicators of malicious intent. The embedded URL was flagged as confirmed benign, but the macro execution itself is still a strong indicator.

Heuristics 6

  • Reference to mshta.exe high SC_STR_MSHTA
    Reference to mshta.exe
  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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/rikimartinplace/RkEKd8/683fc6325ea71cd05527237b1a08fcfe774a6c46/files/michaelfinal

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
e6bc433dd5b5cf5eed731fc53a131733e4af70af7ca8f5a38b55ed5080d99938		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 758 bytes

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