Malicious RTF — malware analysis report

Static analysis result for SHA-256 7f3fdfda1c8c6327…

MALICIOUS

RTF

97.4 KB
MD5: 50059a1957f48a1e70dab19596c34462 SHA-1: b1fcc4511a425d99f1b794de1613bf42a7252970 SHA-256: 7f3fdfda1c8c6327cb9b61be0148d5e9b9db50c65d3c4346d4053ca9661c1fe5
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers the CVE-2017-11882 Equation Editor vulnerability. This vulnerability allows for arbitrary code execution, indicating the file's malicious intent. No further IOCs or script content were extracted to provide more specific details.

Heuristics 3

  • CVE-2017-11882 — Equation Editor FONT record overflow critical CVE likely CVE_2017_11882
    Equation Editor MTEF contains an overlong FONT typeface field, the vulnerable copy primitive for CVE-2017-11882. This is stronger evidence than the Equation Editor CLSID alone because it identifies the malformed record that drives code execution in EQNEDT32.EXE.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000238e.bin
2a53b5373bf1e71eaeee5ddbce7b8851b9fcef409332b6db8c57a26bc216e3f1		 rtf-objdata-decoded RTF \objdata at offset 0x238E 3631 bytes

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