Malicious RTF — malware analysis report

Static analysis result for SHA-256 b4125b4ab5176486…

MALICIOUS

RTF

106.1 KB First seen: 2021-09-16
MD5: 8372e2d229757913e57b3da5ef5d2816 SHA-1: 6bb7fc9d303cb9aa85d38e6cdfaaf979facc19f7 SHA-256: b4125b4ab5176486c392d1417b43ee690feefd1bb72c42446b0ddc6fefeef7ea
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_off00000091.bin rtf-objdata-decoded RTF \objdata at offset 0x91 3627 bytes
SHA-256: 5d2fede66a017b7e77d76299a823e2b47f173ae66ea06cc9778b34ad018bbb50

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