Malicious RTF — malware analysis report

Static analysis result for SHA-256 dc184717ba31d2f9…

MALICIOUS

RTF

72.1 KB
MD5: 6c9858ed8b72479d566139f0f5ed8ff4 SHA-1: 6308d8b44589d5a7430eca83969e74e224590ab0 SHA-256: dc184717ba31d2f9d0662eb3468a1fa84e874ce6905a203bec3bb3fe3d192bd6
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a critical vulnerability, CVE-2017-11882, within Microsoft Equation Editor. This exploit 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_off00000111.bin
f6dee588318cd809a691f3b726624d9361bcba286e2087dacff3a7f91ac32281		 rtf-objdata-decoded RTF \objdata at offset 0x111 3631 bytes

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