Malicious RTF — malware analysis report

Static analysis result for SHA-256 899f5096321ddf41…

MALICIOUS

RTF

95.7 KB
MD5: 97d1f3cf5c52d7871ba166e05af16dd3 SHA-1: e03c204322cc425d2d41a9815b784625a95675b8 SHA-256: 899f5096321ddf4131a543a046cb2e4563279f49a7f622b770b6633e55a5ffae
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This exploit allows for arbitrary code execution, indicating a malicious intent to compromise the 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_off00002360.bin
41f29e5f5508727944168a464019c625ddab2270f3a0b8bed7917244785d7ed7		 rtf-objdata-decoded RTF \objdata at offset 0x2360 3631 bytes

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