Malicious RTF — malware analysis report

Static analysis result for SHA-256 717a702f25829976…

MALICIOUS

RTF

83.7 KB
MD5: b70f8bad85bceeeaf751d679b98330c3 SHA-1: 0c2beb65568e4ffbb5a563668f8defa000624308 SHA-256: 717a702f2582997685ee40557ffa75b00e72d398f1990d672d448ee7fd6f80e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that exploits the CVE-2017-11882 vulnerability in Microsoft Equation Editor. This vulnerability allows for arbitrary code execution when the object is processed, indicating a malicious intent to compromise the user's system.

Heuristics 4

  • 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.
  • Equation Editor CLSID critical RTF_EQUATION_EDITOR
    Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
  • 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_off00002395.bin
af1415d03f48e8fde7eeb6a0bfc03fead70e8c428b8b4ed285ac308309c58658		 rtf-objdata-decoded RTF \objdata at offset 0x2395 3631 bytes

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