MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The RTF document contains embedded OLE objects, indicated by multiple RTF_OBJDATA firings. The RTF_OBJUPDATE and RTF_OBJAUTLINK heuristics suggest that these objects are designed to be automatically activated upon opening the document, likely exploiting a vulnerability to execute arbitrary code. A high-entropy OLE object was extracted, named objdata_00_off00001852.bin, which is the primary indicator of the malicious payload.
Heuristics 5
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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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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 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_off00001852.bin0e9b0d5bb2000ed510ed77d86241af255626a4aa89fcd1add4e250d88dd2cc61 |
rtf-objdata-decoded | RTF \objdata at offset 0x1852 | 145473 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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