Malicious RTF — malware analysis report

Static analysis result for SHA-256 284785f424981eec…

MALICIOUS

RTF

11.3 KB First seen: 2020-08-10
MD5: 6e3d488a475d52e59dda8356d54c5bb5 SHA-1: 7a819567fa22f45779f47f7d38f5e33a0aa05d42 SHA-256: 284785f424981eec4010e597a7aa8922457e3c2eab14a7b77937f7a18047115e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object, as indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic firing suggests that the file attempts to force the activation of this OLE object, which is a common technique for exploiting vulnerabilities to execute arbitrary code. The specific OLE object data is extracted as 'objdata_00_off00001dec.bin'.

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_off00001dec.bin rtf-objdata-decoded RTF \objdata at offset 0x1DEC 1743 bytes
SHA-256: 327855a63341fd201c039cd73d6213b3505eb0cf3fa173772534312529c81f11