MALICIOUS
160
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 containing OLE object data, specifically triggering the Equation Editor heuristic. The presence of \objupdate indicates an attempt to force OLE activation, and the SE_ENABLE_LURE heuristic suggests the document prompts the user to enable editing or macros. This combination strongly suggests an exploit targeting the Equation Editor vulnerability to deliver a malicious payload.
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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\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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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_off000012ce.bina2dc200ba6cdf19413ceb7b8fa3f24086c324a378c94f1996331ddc717af2f8a |
rtf-objdata-decoded | RTF \objdata at offset 0x12CE | 3729 bytes |
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