MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The sample contains a critical heuristic indicating the presence of a payload for CVE-2017-11882 within an embedded Equation Editor OLE object. This exploit is designed to execute arbitrary code on the victim's machine, likely as part of a spearphishing attachment delivery chain. No scripts were extracted, and the document body was unreadable.
Heuristics 4
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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 EAX) high SC_GETPC_CALLx86 GetPC stub (CALL $+5; POP EAX)
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Reference to mshta.exe high SC_STR_MSHTAReference to mshta.exe
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ole10native_00.bin392dcaa4b42d2cc05e3c3a7788fa1d18e54054ff080b3734c583be0b890478d1 |
ole-package | OLE Ole10Native stream: oLE10NAtivE | 1044230 bytes |
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