Malicious RTF — malware analysis report

Static analysis result for SHA-256 59bd4944eba988e3…

MALICIOUS

RTF

112.1 KB First seen: 2021-09-16
MD5: 123d3d92800d181f238b6eb1579431c8 SHA-1: 4896f65617887d2fa5ec578fd8805de30c4e7f68 SHA-256: 59bd4944eba988e3e14151439c801df6531b170060e77e459a69978b1b759b94
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_off000000ea.bin rtf-objdata-decoded RTF \objdata at offset 0xEA 3627 bytes
SHA-256: 5d2fede66a017b7e77d76299a823e2b47f173ae66ea06cc9778b34ad018bbb50