Malicious RTF — malware analysis report

Static analysis result for SHA-256 d9f941cb1bc4cafa…

MALICIOUS

RTF

96.7 KB
MD5: 8212299233041357c97e925515688a85 SHA-1: 7b6558d1aad60bddca11733f77b96800c875c349 SHA-256: d9f941cb1bc4cafa6fe23fa1650cddc85a649592979475b306ba0cc288d3cb16
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 the execution of arbitrary code, 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_off000023ac.bin
88b38c73acb0758578b1026aeb013f778530186fb2c95c83133734795af06381		 rtf-objdata-decoded RTF \objdata at offset 0x23AC 3631 bytes

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