Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 56544ce65e7d3e9a…

MALICIOUS

RTF / .DOC

109.6 KB
MD5: d55328b7b87c986b84e60450453840c1 SHA-1: 59e32e807f54730015a0cc24b4144abf60655f18 SHA-256: 56544ce65e7d3e9ad2a3559c3aaff562bc8c1573609c6d1210baeed5f7ddbaa8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File Execution T1059 Command and Scripting Interpreter T1137 Software Deployment Techniques

The RTF document contains OLE object data and is configured to automatically update and activate these objects. This indicates a technique to execute embedded code upon opening. While no specific script or URL was directly extracted, the heuristic firings strongly suggest the file's purpose is to exploit OLE object activation for arbitrary code execution, likely as a downloader for further malicious activity.

Heuristics 3

  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001131.bin
0fd31319aafe7535d946badfa2f5d9c4a0af2179721a4f4f4524485ced04f3d9
rtf-objdata-decoded RTF \objdata at offset 0x1131 2097 bytes