MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1059 Command and Scripting Interpreter
The RTF document contains an embedded OLE object, specifically identified as a potential Equation Editor exploit. The presence of \objupdate and SE_ENABLE_LURE heuristics indicates the document is designed to trick the user into enabling editing, which would then activate the embedded object. This strongly suggests an attempt to exploit a known vulnerability, likely CVE-2017-11882, to execute a malicious payload.
Heuristics 5
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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 1 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
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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_off000045c4.binc48e6563858a824e97a21f29cd542d46df547021e3f2a524236e1905e5be5e20 |
rtf-objdata-decoded | RTF \objdata at offset 0x45C4 | 1728 bytes |
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