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

Static analysis result for SHA-256 75dafcbfff64ed25…

MALICIOUS

Office (OLE) / .PPT

79.0 KB Created: 2006-08-16 00:00:00 Authoring application: Microsoft Office PowerPoint
MD5: 0924c5815825bab008f16a9ccdbbcc35 SHA-1: 9cd47cd798f310e04661563b3be2554813c1424f SHA-256: 75dafcbfff64ed25fdccb06cc1cdbff65fca3e0d3e992530fe455388365adf86
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The file is a PowerPoint presentation containing a VBA macro that is automatically executed upon opening. The macro uses a Shell() call and obfuscated string concatenation to construct and execute the command 'mshta http://j.mp/ajj9j9di3'. This command is likely used to download and execute a second-stage payload, indicating a downloader or dropper functionality.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Dangerous API name reassembled from split string literals critical OLE_VBA_SPLIT_KEYWORD_OBFUSCATION
    VBA concatenates short string literals that reassemble a dangerous API/ProgID/LOLBin name (e.g. Scripting.FileSystemObject, WScript.Shell, powershell, URLDownloadToFile) which appears in no single literal. Splitting an API name across string concatenation is done only to evade keyword scanning.
  • 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.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
add48bb4524dbf57a6f1ada154b84427855297e94ea7a2e19492e918f2654f7a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1941 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.