MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF document contains an embedded OLE object that leverages the Equation Editor vulnerability (CVE-1999-0001). The `RTF_EQUATION_EDITOR` and `RTF_OBJAUTLINK` heuristics indicate that this object is designed to be automatically activated and likely executes a secondary payload. The `RTF_OBJDATA` heuristic further confirms the presence of embedded object data, which is characteristic of exploit documents.
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 1 \objdata section(s) — embedded OLE objects
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000920.binf1c74650ac23773b6f3ec07836f54f78d30272bd8e7bca8be74cb01a1da039e2 |
rtf-objdata-decoded | RTF \objdata at offset 0x920 | 63545 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.94, consistent with packed or encrypted content.
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