MALICIOUS
121
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF document contains embedded OLE objects and specifically triggers the Equation Editor vulnerability. The ".objupdate" directive forces the activation of the embedded OLE object, which is a known method for exploiting the Equation Editor vulnerability to achieve arbitrary code execution. This indicates a likely attack pattern involving a malicious document designed to exploit this specific flaw.
Heuristics 3
-
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
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off0000008f.bin8fc59b498f98613c3345b96a71ea8b2bb9e7c4995cd5548a0b7567ef27cc057f |
rtf-objdata-decoded | RTF \objdata at offset 0x8F | 2034 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.