MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The RTF document contains an OLE object with a split Equation Editor ProgID and is configured to automatically update, indicating an attempt to exploit a known vulnerability. The presence of the SE_ENABLE_LURE heuristic suggests the document also contains text prompting the user to enable editing or macros, a common social engineering tactic to bypass security measures. The primary goal is likely to leverage the exploit to download and execute a secondary 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_off00004a80.bin233d6529126c23dc92678736c6951e008bcbfbb304818400136806891c445516 |
rtf-objdata-decoded | RTF \objdata at offset 0x4A80 | 1946 bytes |
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