MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1204.002 Malicious Link: Malicious File
T1559 Component Object Model Hijacking
T1559.001 Component Object Model Hijacking: Component Object Model
T1059 Command and Scripting Interpreter
T1059.003 Command and Scripting Interpreter: Windows Command Shell
The RTF document contains embedded OLE objects, specifically leveraging the Equation Editor component (ProgID Equation.3). The presence of \objautlink and \objupdate controls indicates that the embedded OLE object is designed to be automatically activated upon opening the document. This is a strong indicator of exploitation for CVE-2017-11882 or similar vulnerabilities, which allows for arbitrary code execution.
Heuristics 4
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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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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.
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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_off00001290.bin39303dc47f1de713861c83dce5eca6facac418163708c0965ea02837a56328c6 |
rtf-objdata-decoded | RTF \objdata at offset 0x1290 | 1912 bytes |
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