Malicious RTF — malware analysis report

Static analysis result for SHA-256 ba8736cf59dca008…

MALICIOUS

RTF

161.0 KB
MD5: 6c2184bd8f6a6f1126b00e8e4ff6d9a6 SHA-1: 64d57eaa8152f0e2f26ccd8e32b02d2fed74df19 SHA-256: ba8736cf59dca00820efb021e2456cb579816c410e06709be7784f847f6209f1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This exploit allows for arbitrary code execution, indicating a malicious intent to compromise the user's 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_off000023a1.bin
82105fe4a278a028320534e6ef156183811ef90ed836bcb88ab0d8d6e72845a3		 rtf-objdata-decoded RTF \objdata at offset 0x23A1 28445 bytes

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