MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1059.005 Visual Basic
The RTF document contains an embedded OLE object, specifically targeting the Equation Editor vulnerability (RTF_EQUATION_EDITOR). The document body includes a lure instructing the user to 'Enable editing', which is a common technique to bypass macro security settings. The presence of ".objupdate" further suggests an attempt to automatically activate the embedded object, likely to trigger the exploit and download a secondary payload.
Heuristics 5
-
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 1 \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_off00005b42.bin7a8687cb9f9a9f11c44e9903e71ad779085cf38c7c56be8ebb960abe6e0db48a |
rtf-objdata-decoded | RTF \objdata at offset 0x5B42 | 1642 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.