MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
The file is an RTF document that contains embedded OLE objects, specifically triggering heuristics related to the Equation Editor vulnerability. The presence of \objupdate suggests that the embedded object is designed to be activated automatically. This indicates a likely attack pattern where the document exploits a known vulnerability to download and execute a secondary payload, commonly seen in macro-based or exploit-laden documents.
Heuristics 3
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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.
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\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.
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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_off0000127b.bin7b36e1de483a250f8cd26384ed535d77be735e15df6fa128feb7c26f4e6fe0f6 |
rtf-objdata-decoded | RTF \objdata at offset 0x127B | 1731 bytes |
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