Malicious RTF — malware analysis report

Static analysis result for SHA-256 7ca256d949870ec6…

MALICIOUS

RTF

86.3 KB
MD5: f6217a00a31bb7858bd3132998a5aa23 SHA-1: b3ffe3c88c57eadf2c1f2b1f24f3addfc2308268 SHA-256: 7ca256d949870ec64cf494c538969edb567b6b50096da2eb968cb7d246b918ef
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file 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, indicating a likely exploit attempt to gain initial access or execute a 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_off00002386.bin
8f92f33b01e0e86244883b4ba98b34d7600a28290bf8b613fd9f259dce6a4b9f		 rtf-objdata-decoded RTF \objdata at offset 0x2386 3631 bytes

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