MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF file contains embedded OLE objects, specifically targeting the Equation Editor component. Heuristic firings indicate the use of automatically linked OLE objects and ".objupdate" commands, which are commonly used to trigger exploits. This pattern strongly suggests an attempt to leverage the Equation Editor vulnerability (CVE-2017-11882) for arbitrary code execution.
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_off000000a4.bin5e4428344daaf96961396a441788dc2d88589c07a22d54b69d1387dc1e9a1b9c |
rtf-objdata-decoded | RTF \objdata at offset 0xA4 | 1530 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.