Malicious RTF — malware analysis report

Static analysis result for SHA-256 2d6d12ce2b306b8d…

MALICIOUS

RTF

86.8 KB
MD5: c11de3f05564814b4a2e859da964f521 SHA-1: 4ef2650d4c00d281454819b513efa7da66cd0568 SHA-256: 2d6d12ce2b306b8d5374a6e40564e1e054c049668d2d7a7c4f0b8f79e7811cdb
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a known vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution, indicating the file is designed to exploit this flaw 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_off000023ab.bin
4afdbd4f8913da0a9e637e8511c2c5cf0696d84a49ce4a5e0f85d21f7288ba4d		 rtf-objdata-decoded RTF \objdata at offset 0x23AB 15974 bytes

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