Malicious RTF — malware analysis report

Static analysis result for SHA-256 308b30190e1f5ae3…

MALICIOUS

RTF

109.6 KB Created: 2021-07-16 07:42:00
MD5: 163916c83e227300af68cfdb0afab2ba SHA-1: 932585595267d20ecaf1d788590654b4b5a7f57d SHA-256: 308b30190e1f5ae30444faa961de97d00d9891e4496500730a71e95e38644266
102 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a critical vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This vulnerability allows for the execution of arbitrary code, indicating a malicious intent to compromise the system. No document body or script content was available for further analysis.

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_off00003115.bin
1dd0fc01d9f4e5119065080cfde3c2e33c94cf69a5e01b39cb490db0778f3946		 rtf-objdata-decoded RTF \objdata at offset 0x3115 3629 bytes

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