Malicious RTF — malware analysis report

Static analysis result for SHA-256 b16362e35d28ede3…

MALICIOUS

RTF

155.7 KB
MD5: 9593a2a4577d411b273970e5ec39eb5c SHA-1: 711b17c94a6c9ea34c389432bae41eb9f78dbbad SHA-256: b16362e35d28ede3cd895f028a1f65bb876e8d34b1e067ea11d1fa059677fe04
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 the execution of arbitrary code, likely to download and run a secondary payload.

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_off0000236f.bin
895965b37a2435a19b63ae7ac3e61ba6f8f8ff997f7ce7b862bbfb731654adf2		 rtf-objdata-decoded RTF \objdata at offset 0x236F 28445 bytes

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