MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is a Microsoft Word document containing a malicious Equation Editor object. Heuristics indicate exploitation of CVE-2017-11882, a known vulnerability in the Equation Editor component. This vulnerability allows for arbitrary code execution, likely to download and run a secondary payload. The SHA256 hash is included as a primary IOC.
Heuristics 2
-
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.
-
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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ole10native_00.binbfc7497f6bb355994c21755d7357deafc63916356c38113d67d8b41eb4d4c251 |
ole-package | OLE Ole10Native stream: OLE10NAtIVE | 801200 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.