Malicious RTF — malware analysis report

Static analysis result for SHA-256 8b2dcf66d11b451a…

MALICIOUS

RTF

57.3 KB
MD5: 37717e7eb452bd563b93ed3c775b1d92 SHA-1: 20209716563c9efcf19a6ebf351bad3ca69bbcc4 SHA-256: 8b2dcf66d11b451abb0244524d6c23e2867cead527ccd699c72eb297b8b5bbd7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that exploits the CVE-2017-11882 vulnerability in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution when the object is processed. No further stages or specific family indicators were identified.

Heuristics 4

  • 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.
  • Equation Editor CLSID critical RTF_EQUATION_EDITOR
    Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
  • 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_off0000010c.bin
38f26e5327c41ac578266d05d710bf06b247eb2d798a52e977f3f7e46f29f5d8		 rtf-objdata-decoded RTF \objdata at offset 0x10C 3631 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.