MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.003 Command and Scripting Interpreter: Windows Command Shell
The file is an RTF document containing embedded OLE objects, specifically triggering heuristics related to the Equation Editor vulnerability (RTF_EQUATION_EDITOR). The presence of \objupdate indicates that the embedded object is designed to be activated automatically upon opening, likely leading to the execution of a secondary payload. While no specific URLs or scripts were extracted, the exploitation of the Equation Editor is a common initial access vector for malware delivery.
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_off00001d3d.bin88d0c30ec430d8eee6861b920f3f7e5ee75abdd1589b1eae046861fc1b13728f |
rtf-objdata-decoded | RTF \objdata at offset 0x1D3D | 1715 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.