Malicious RTF — malware analysis report

Static analysis result for SHA-256 2e269c1725dfebc7…

MALICIOUS

RTF

74.4 KB
MD5: 270de3f6dac260a0aa2f3caafde2c09a SHA-1: 4d30c0234859b8ed26ad4481c9b5f70ca1e04660 SHA-256: 2e269c1725dfebc7f7f7d41e8434ce8f7c707806767c55577aed83ee1be19aa5
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 vulnerability in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution when the malformed object data is processed. No further stages or specific family indicators were identified.

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_off000001db.bin
c3ba276c39b36a88c1e5c31dc2ce7b8538f3e0bf7670069e9b1c5f4c5e572b48		 rtf-objdata-decoded RTF \objdata at offset 0x1DB 3631 bytes

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