MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file is an RTF document that leverages the Equation Editor vulnerability (CVE-2017-11882) to execute arbitrary code. The embedded OLE object and the specific RTF heuristics strongly indicate exploitation of this known vulnerability. The document body, though partially encoded, discusses marketing strategies and consumer research, likely a lure to trick the user into opening the malicious content. The primary attack vector is likely through a spearphishing attachment.
Heuristics 4
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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
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000012e9.bin00bc85e76d768761790894d0bf4276a265b7d71354d3d54bb189b0dec6de93bd |
rtf-objdata-decoded | RTF \objdata at offset 0x12E9 | 1915 bytes |
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