MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF document contains OLE object data with an \objupdate directive, indicating an attempt to exploit OLE activation for code execution. The high entropy of the decoded OLE object suggests it likely contains shellcode or a secondary payload. The file is classified as malicious, and the presence of OLE exploitation points to a client-side execution attack, likely delivered via spearphishing.
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_off00001e3b.bind3f87af76e57aba9dabb866b43e1c47a9abb7bad4d9f2594318ac0c74ccfe69b |
rtf-objdata-decoded | RTF \objdata at offset 0x1E3B | 145976 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.
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