Malicious RTF — malware analysis report

Static analysis result for SHA-256 f18d1537739d5596…

MALICIOUS

RTF

71.8 KB
MD5: f44d7ce04029da54d0c34b34cb877194 SHA-1: 9242479fc82fdae4744c3343e9d7304ea4870366 SHA-256: f18d1537739d5596102faae2c872aeec912c9439227b8a272efa6ffd8e4c79aa
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a critical heuristic for CVE-2017-11882, a known vulnerability in Microsoft Equation Editor. This exploit 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_off00000078.bin
9dd97a6e23af633b205dd6e5afc7e4d8aacba2425ef87d2c592ec82093349b92		 rtf-objdata-decoded RTF \objdata at offset 0x78 3631 bytes

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