MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF document contains embedded OLE objects with ".objupdate" directives, indicating an attempt to trigger OLE activation and execute embedded code. A high-entropy OLE object was extracted, suggesting it may contain a malicious payload. The document body is heavily obfuscated and unreadable, providing no direct clues to the attack's intent.
Heuristics 4
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Ole10Native stream in RTF OLE object high RTF_OLE10NATIVE_STREAMRTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
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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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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_off00001fd0.bin17829bbc987108d6c3998d8612434d823438a1a32c687598311cb8adaeceb992 |
rtf-objdata-decoded | RTF \objdata at offset 0x1FD0 | 175699 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.98, consistent with packed or encrypted content.
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