MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The RTF file contains embedded OLE object data and specifically triggers heuristics for the Equation Editor vulnerability (RTF_EQUATION_EDITOR). The ".objupdate" directive forces OLE object activation, indicating an attempt to exploit this vulnerability for code execution. The embedded data, though truncated, contains strings that appear to be part of shellcode or a payload, including references to 'cer' and potentially PowerShell commands.
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.
-
\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
-
Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000048.bin1301ea2802adc66ac78135236c54d04dc07877fa55252c73241ae71ed2be9724 |
rtf-objdata-decoded | RTF \objdata at offset 0x48 | 1823 bytes |
objdata_01_off000000b7.bin1c573fd543e57721fee4e8f9663a19b58590701af0c036febc3297a5e4193472 |
rtf-objdata-decoded | RTF \objdata at offset 0xB7 | 47 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.