Malicious RTF — malware analysis report

Static analysis result for SHA-256 25326592653be11d…

MALICIOUS

RTF

151.3 KB
MD5: bab6681599ade1e90fc72185450d663e SHA-1: 9d920dfbe6c84d48783d720d04f2426f7383f2aa SHA-256: 25326592653be11d7ba6ade4482e4a0c54bf35a1d9848c17ba7a7b9135eda4f2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a critical vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This vulnerability allows for the execution of arbitrary code, indicating a likely exploit delivery mechanism. No further details on the payload or family could be determined from the provided evidence.

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_off000023e7.bin
55b6db64174e9701cb3f50b8e369f65bfc1f2eeaa8766a110782806396859f55		 rtf-objdata-decoded RTF \objdata at offset 0x23E7 28447 bytes

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