Malicious RTF — malware analysis report

Static analysis result for SHA-256 417fdc94d2edbfb5…

MALICIOUS

RTF

72.3 KB
MD5: a124e3bc70d08a904881239a94eaaf70 SHA-1: 179e50f6811a3efbff2800845fc9471a24d5780f SHA-256: 417fdc94d2edbfb56712969e322d1ba19cd6b0c02a68edf90d3998a2caee2174
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 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_off00000111.bin
cfb440521203e813c955853daeb18e0f63625812d296dab8a5fd94f515c98974		 rtf-objdata-decoded RTF \objdata at offset 0x111 3631 bytes

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