MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File
T1059.001 Command and Scripting Interpreter: PowerShell
T1203 Exploitation for Client Execution
The sample is an RTF document that leverages the Equation Editor vulnerability (CVE-2017-11882) to execute arbitrary code. The heuristics indicate the presence of an OLE object with automatic linking and updating, strongly suggesting exploitation. The embedded OLE object data, when decoded, likely contains the exploit code or a loader for a secondary payload.
Heuristics 4
-
Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITORRTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
-
Automatically linked OLE object high RTF_OBJAUTLINKRTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
-
\objupdate forces OLE activation high RTF_OBJUPDATERTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
-
OLE object data medium RTF_OBJDATARTF contains 2 \objdata section(s) — embedded OLE objects
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001485.bin6ec830406d5a3f159004d541c64713782001adac6f9a96f728a5ee77ff785c89 |
rtf-objdata-decoded | RTF \objdata at offset 0x1485 | 1890 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.