Malicious RTF — malware analysis report

Static analysis result for SHA-256 442f47f105c60efb…

MALICIOUS

RTF

168.0 KB
MD5: 26744b46a552705419ec1dffa1270eed SHA-1: 2f1b16b9686f7df2bdad230a0cd7a303c48852eb SHA-256: 442f47f105c60efb37bf19e019e9b0f63a1e7e7cf579d7511bf53dee99f17503
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 arbitrary code execution, indicating a malicious intent to compromise the 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_off00002388.bin
0b901ee581b17e38598a4edeb80e339595e38447540aab06d9226df84fb1642a		 rtf-objdata-decoded RTF \objdata at offset 0x2388 28445 bytes

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