Malicious RTF — malware analysis report

Static analysis result for SHA-256 d844c16c3edb5a28…

MALICIOUS

RTF

72.0 KB
MD5: 17f4986b05f93065ef7c19d8f6b107a6 SHA-1: 860509c5e9760565acf10698c222496dbad438da SHA-256: d844c16c3edb5a284486009d1a2ab96bb5fdcb9f505b4af35452a468c3e164e2
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_off0000010c.bin
04130e2efa0f4e45a7e45ca38ed95ff3ae7a46f037db381f8cd891d7aac3878c		 rtf-objdata-decoded RTF \objdata at offset 0x10C 3631 bytes

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