MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1204.002 Malicious File
The sample is an RTF document that contains an embedded OLE object, specifically targeting the Equation Editor vulnerability. The presence of `RTF_EQUATION_EDITOR` and `RTF_OBJUPDATE` heuristics indicates that the file is designed to exploit this known vulnerability for code execution. The `RTF_OBJDATA` and `RTF_OBJEMB` heuristics further confirm the embedding of malicious objects within the RTF structure. The primary attack vector is likely the exploitation of the Equation Editor to achieve arbitrary code execution, enabling the download and execution of further malicious content.
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 1 \objdata section(s) — embedded OLE objects
-
Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001a72.bind48515aba7b2868f96e3f14eecc4baa8dfb3aaa59456fe4bb9df92e96d24c664 |
rtf-objdata-decoded | RTF \objdata at offset 0x1A72 | 1616 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.