MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.005 Visual Basic
The file is an RTF document containing an embedded OLE object, specifically identified as an Equation Editor exploit. The heuristic 'SE_ENABLE_LURE' indicates the document body contains text designed to trick the user into enabling editing and macros. The presence of 'RTF_OBJAUTLINK' and 'RTF_OBJUPDATE' suggests the OLE object is designed to be automatically activated upon opening, likely to execute a malicious payload.
Heuristics 5
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Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITORRTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
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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 1 \objdata section(s) — embedded OLE objects
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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00002f49.bin912280f0bc283878cf2a82f8c9c1c959b97a801f890d7ee5f4e7ee3f8f624d92 |
rtf-objdata-decoded | RTF \objdata at offset 0x2F49 | 1896 bytes |
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