Malicious RTF — malware analysis report

Static analysis result for SHA-256 4c3cff3a874d883e…

MALICIOUS

RTF

108.9 KB First seen: 2021-09-16
MD5: 28e69dce835545e5a20d4a56305d4095 SHA-1: 83483df365a1f6efb6694f23079864ca89cc2b13 SHA-256: 4c3cff3a874d883e29185a36700e0071d54317d4366dd13f5126ba25cb059ac6
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

This RTF document was flagged as malicious. Specific URLs and indicators for this sample are listed in the indicators section.

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_off00000151.bin rtf-objdata-decoded RTF \objdata at offset 0x151 3627 bytes
SHA-256: 5d2fede66a017b7e77d76299a823e2b47f173ae66ea06cc9778b34ad018bbb50

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