Malicious RTF — malware analysis report

Static analysis result for SHA-256 b1a47d14b3d7804f…

MALICIOUS

RTF

107.2 KB First seen: 2021-09-15
MD5: 34fcfe111b12946a6005123038bb2360 SHA-1: 6c1b8ccde9e93fd7d9957deb1d28a0d199cb6b20 SHA-256: b1a47d14b3d7804ff001ee39a1ab135eb1a1171d47f8e1e4d7e0362b45f29b32
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_off0000014f.bin rtf-objdata-decoded RTF \objdata at offset 0x14F 3627 bytes
SHA-256: 5d2fede66a017b7e77d76299a823e2b47f173ae66ea06cc9778b34ad018bbb50