MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious File
The sample is an RTF document containing OLE object data and ".objupdate" directives, indicating an attempt to exploit OLE activation. The high-severity heuristics RTF_OBJUPDATE and RTF_OLE10NATIVE_STREAM strongly suggest that embedded OLE objects are being used to trigger malicious code execution. The document body is heavily obfuscated and does not provide clear user-facing content, but the technical indicators point to a delivery mechanism for further malicious activity.
Heuristics 3
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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
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001b41.bin57221f3f85d6290901bb3db9f9fca5180f71bafabb7324170e4d556760892298 |
rtf-objdata-decoded | RTF \objdata at offset 0x1B41 | 3665 bytes |
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