Malicious RTF — malware analysis report

Static analysis result for SHA-256 f21f10b66a10088d…

MALICIOUS

RTF

72.0 KB
MD5: d34bf6f6dbacc712455ef651fb397034 SHA-1: df99a4f699191c7eda9bf335d19762523fb3cdbf SHA-256: f21f10b66a10088d0f2e1f76bdb4454f68474a2259fe858c4fc6bb5e5ae3a40d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers the CVE-2017-11882 vulnerability in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution, indicating a malicious intent to compromise the system.

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_off00000109.bin
a3801101158307d0c0afb7e9ad7b52af238c60649ce9cd3c7c3f2ad49f28030b		 rtf-objdata-decoded RTF \objdata at offset 0x109 3631 bytes

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