MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.005 Visual Basic
The file is an RTF document that contains an embedded OLE object, specifically targeting the Equation Editor vulnerability. The document body provides a lure about financial audits, instructing the user to 'click Enable editing from the yellow bar above', which is a common technique to bypass macro security settings and trigger the exploit. The presence of RTF_EQUATION_EDITOR and RTF_OBJAUTLINK heuristics strongly suggests exploitation of a known vulnerability.
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_off0000271c.bin22acdf6306ddc0be309a4966a9b6aa7b7cf503d7207ec16f7d383b5f5eaa08d9 |
rtf-objdata-decoded | RTF \objdata at offset 0x271C | 1884 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.