Malicious RTF — malware analysis report

Static analysis result for SHA-256 e0e350441eb0f12e…

MALICIOUS

RTF

86.5 KB
MD5: f1fe89f56653ce3e3f7d4ee7d7995f0c SHA-1: 33a07f9f581048d058f5244a667255fcccbad8c4 SHA-256: e0e350441eb0f12ef955646a60e4b996da3c2acb3339ca3d77879250af7c6526
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 arbitrary code execution, indicating the file is designed to exploit this known flaw for malicious purposes. The SHA256 hash is included as a primary indicator.

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_off000023be.bin
676fcda303031da2fbef7984fc89700285a15447ff2f32f4dfdef3e37ee2b451		 rtf-objdata-decoded RTF \objdata at offset 0x23BE 3631 bytes

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