MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.005 PowerShell
T1204.002 Malicious File
The sample is an RTF document containing OLE object data and an embedded Equation Editor object, which is a known exploit vector. The `RTF_EQUATION_EDITOR` and `RTF_OBJUPDATE` heuristics indicate exploitation of the Equation Editor vulnerability. The `SE_ENABLE_LURE` heuristic suggests the document prompts the user to enable content, a common lure for macro-based malware. The presence of the `RTF_OBJDATA` heuristic further supports the embedding of malicious objects. The SHA256 hash is included as a primary IOC.
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
-
Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off0000066c.bin48e2fa43f9e752e52b6bb6048e87a168a6bebdf15574dad7169bbe3856b5c2c2 |
rtf-objdata-decoded | RTF \objdata at offset 0x66C | 1743 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.