Malicious RTF — malware analysis report

Static analysis result for SHA-256 6b6c1f04cfd61f6d…

MALICIOUS

RTF

4.7 KB First seen: 2020-06-01
MD5: f1e1cb52cebcd88ce05981bfd0e2a756 SHA-1: 7475a684171b2c10301d9f53f405979087c2454e SHA-256: 6b6c1f04cfd61f6d9e1efc7ec833b72952264cf3040594b5068a71bdb67cdebc
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains OLE object data and an \objupdate directive, indicating it is designed to exploit a vulnerability in OLE object handling for code execution. The specific exploit is not detailed, but the presence of these elements strongly suggests an exploitation attempt.

Heuristics 2

  • \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_off000002a9.bin rtf-objdata-decoded RTF \objdata at offset 0x2A9 2038 bytes
SHA-256: 0920bc431551b6a43de5a9c2404d76d412db0a12aa361d2e456511e6a92961fa

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