MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.001 PowerShell
The sample is a Microsoft Office document containing a malicious Equation Editor OLE object. This object exploits CVE-2017-11882, a known vulnerability that allows for arbitrary code execution. The embedded payload is likely designed to download and execute a second-stage payload, though no specific script or URL was extracted.
Heuristics 3
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Equation Editor Ole10Native payload — CVE-2017-11882 critical CVE likely CVE_2017_11882_EQUATION_OLE10NATIVEAn embedded Microsoft Equation 3.0 object (CLSID 0002CE02-0000-0000-C000-000000000046) carries an Ole10Native packager stream instead of the normal Equation Native/MTEF data. This is the weaponized Equation Editor RCE delivery shape used by CVE-2017-11882 / CVE-2018-0802 maldocs. The payload (font-record overflow + shellcode) is frequently encrypted and the stream name case-scrambled to evade scanners, but an Equation object holding an Ole10Native stream has no benign use.
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Equation Editor OLE object high OLE_EQUATION_EDITORContains Equation Editor object — related to CVE-2017-11882 / CVE-2018-0802 exploitation, but CLSID presence alone is not the malformed MTEF exploit primitive.
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x86 GetPC stub (CALL $+5; POP EBP) high SC_GETPC_CALLx86 GetPC stub (CALL $+5; POP EBP)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ole10native_00.binb7cb3356e26cfe32ba81473afa1bfc9ff4deebba96b352dbbbe07468009412a2 |
ole-package | OLE Ole10Native stream: OlE10naTIvE | 828700 bytes |
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