MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.001 PowerShell
The RTF document contains a large amount of OLE object data, indicated by the RTF_OBJDATA and RTF_EXCESSIVE_HEX heuristics. The RTF_OBJUPDATE heuristic suggests that this object data is intended to be activated, likely exploiting a vulnerability within Microsoft Office. The extracted artifact 'objdata_00_off000009b3.bin' is suspicious and likely contains the payload. The document body is heavily obfuscated and does not provide clear intent, but the heuristics strongly suggest a malicious exploit attempt.
Heuristics 4
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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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Large hex data blocks in OLE object high RTF_EXCESSIVE_HEXRTF contains ~1231KB of hex-encoded data inside \objdata sections — may hide a payload
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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_off000009b3.bin7efa9ed949f5f62c55dba44c856702fe716a174a1e445a5175c78b5f25add90d |
rtf-objdata-decoded | RTF \objdata at offset 0x9B3 | 615771 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.99, consistent with packed or encrypted content.
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