Malicious RTF — malware analysis report

Static analysis result for SHA-256 2b3fc092fe7de3ca…

MALICIOUS

RTF

72.0 KB
MD5: afc30d817694099d2100042a8bb29a72 SHA-1: 28ccac40d19e60b61e50bdfb7c56ea0ffd7b32ba SHA-256: 2b3fc092fe7de3caced2e1a6ddb290e23fb4090a122a556105b18d72aa6f1e88
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, indicating a malicious intent 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_off00000107.bin
c209e3550c54c31a59b29b02c72438d7d203306d7cad68dbfc289ea1ca56a302		 rtf-objdata-decoded RTF \objdata at offset 0x107 3631 bytes

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