Malicious RTF — malware analysis report

Static analysis result for SHA-256 f7f204406be80898…

MALICIOUS

RTF

159.3 KB
MD5: d3dc2456e8f79757ed6869bfd0473fd0 SHA-1: 8780f3e6cc9b87367559c8729b6f619e4e904a32 SHA-256: f7f204406be80898de898ca70ffc5d3c3bf16650545ad9a59681904c81de7ec7
100 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 the execution of arbitrary code, indicating a likely exploit attempt.

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_off000022e8.bin
48fe4234a1aa590d9fa81c5c6b3bfe9bd68bc9f9e9cdb79727c2617b74b0600c		 rtf-objdata-decoded RTF \objdata at offset 0x22E8 28445 bytes

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