Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c32a13f2ca98eb1c…

MALICIOUS

RTF / .DOC

3.4 KB First seen: 2023-07-06
MD5: b22dbb54f7bdfc4308986b1cb4bc0fe2 SHA-1: 8363c8ba8999a5792d945509952f37fb4a2d9015 SHA-256: c32a13f2ca98eb1cda57b99f86bffa2abc60f5f4def96b482c67c2d5ee20e085
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains embedded OLE objects that are automatically linked and updated, indicating an attempt to exploit a vulnerability. The heuristics suggest that this is likely an attempt to execute arbitrary code upon opening the document, potentially leading to a second-stage payload. No specific family could be identified.

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_off00000097.bin
3985263d914a4ca4e3e972e9b8543ebe893da3985c8c46cb06ffabdc5fe215ff
rtf-objdata-decoded RTF \objdata at offset 0x97 1649 bytes