Malicious RTF — malware analysis report

Static analysis result for SHA-256 393e2ad5e025d260…

MALICIOUS

RTF

95.8 KB
MD5: da140b2795bd83c568b368cbfeda3b84 SHA-1: 69a814c86e826da6caa1179b11363ba2beaedbe1 SHA-256: 393e2ad5e025d26058ad536358f9ee6f34a52f3d4f66e028a07e4910bcf42808
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers the CVE-2017-11882 Equation Editor vulnerability. This vulnerability allows for arbitrary code execution, indicating the file's primary purpose is to exploit this known flaw.

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_off000023a8.bin
1f38034435f95b102138a8b6ebea1178dfa3d2ac037630dc2ff1a009f9255a06		 rtf-objdata-decoded RTF \objdata at offset 0x23A8 3631 bytes

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