MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF document contains multiple indicators of malicious intent, including OLE object data, an automatically linked OLE object, and a critical finding for Equation Editor CLSID. The document body explicitly instructs the user to 'enable editing to view in readable format6!', which is a common lure to bypass macro security settings and activate embedded exploits. The presence of the Equation Editor CLSID strongly suggests exploitation of CVE-2017-11882.
Heuristics 5
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Equation Editor CLSID critical RTF_EQUATION_EDITOREquation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
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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
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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_off00000988.binb79fbeaa9e0f97ec2ca20dc68f8ce73ece3ef06eff5d7ce076006c55ece621aa |
rtf-objdata-decoded | RTF \objdata at offset 0x988 | 4239 bytes |
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