Malicious RTF — malware analysis report

Static analysis result for SHA-256 3ff383312bba21bb…

MALICIOUS

RTF

105.8 KB First seen: 2021-09-15
MD5: c953aa13a5900ee8ac73706ec768d33e SHA-1: d58e55821ce0d5ea7566cc7bba4103e1e1fdc6e2 SHA-256: 3ff383312bba21bb9e26f1c4472ecbb51bc45f1f76077686e811b8ae8a435188
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_off00000055.bin rtf-objdata-decoded RTF \objdata at offset 0x55 3627 bytes
SHA-256: 5d2fede66a017b7e77d76299a823e2b47f173ae66ea06cc9778b34ad018bbb50

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