Malicious RTF — malware analysis report

Static analysis result for SHA-256 82a82a0cd4dbdd3b…

MALICIOUS

RTF

113.9 KB Created: 2021-07-16 07:42:00
MD5: 43e6f263c87399aa2cc5ae3ae92381a8 SHA-1: 29a20c1df8e9dc6e272f36ef247bfa6c1c724b75 SHA-256: 82a82a0cd4dbdd3bc3cc23e0d0db82194983d6ff4a63039e7bd99fba7d6ef955
102 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 arbitrary code execution, indicating a malicious intent to compromise the 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.
  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.microsoft.com/office/word/2003/wordml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000030eb.bin
7d88b40469d1f320b21e9903a81b0b2a6b2225d2a97c5c069095b20e0d918f59		 rtf-objdata-decoded RTF \objdata at offset 0x30EB 3629 bytes

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