Malicious RTF — malware analysis report

Static analysis result for SHA-256 b06e3538f3340b69…

MALICIOUS

RTF

112.9 KB Created: 2021-07-16 07:42:00
MD5: 626c12a21f4936435f53f1570d0e1ab3 SHA-1: 7fe0861a7dc9252a663879f3529038464857dc13 SHA-256: b06e3538f3340b699bd96af03dbf8c8b070557e23108de02c9fb4c03871f7d6b
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_off00003337.bin
eaa692011d6a1c26ae376023c119e31d19ba13b6529f06d9d735605a95f9d0e6		 rtf-objdata-decoded RTF \objdata at offset 0x3337 3629 bytes

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