Malicious RTF — malware analysis report

Static analysis result for SHA-256 46d4f4c9b3aa2047…

MALICIOUS

RTF

72.6 KB
MD5: 971394f66e118d6c3db590ac342169ff SHA-1: 144dcb0876a4643faa43e88fcc7371773009006d SHA-256: 46d4f4c9b3aa2047d52b057b8105ff6088ca929372baef815927a49c98336dfe
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution, indicating the file is designed to exploit this flaw 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_off000001c0.bin
f5e46141314fd6abe003c842c38a8faf9a058da7732a5bc8aa521a85a619be42		 rtf-objdata-decoded RTF \objdata at offset 0x1C0 3631 bytes

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