MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious Link
T1204.001 Malicious Link: Malicious Link
T1559 Component Object Model Hijacking
T1559.001 Component Object Model Hijacking: Component Object Model Hijacking
The file is a Microsoft Office document containing an embedded Equation Editor object. Heuristics indicate that this object is a payload for CVE-2017-11882, a known vulnerability in the Equation Editor component. This vulnerability allows for arbitrary code execution when the document is opened, leading to the delivery of a malicious payload. No scripts were extracted, but the exploit itself is sufficient to classify the attack.
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 EDI) high SC_GETPC_CALLx86 GetPC stub (CALL $+5; POP EDI)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ole10native_00.bin35043cf3d22a7e8d2198f0510d30d2254a9c0e4dc0f1d1fe1ae20b0faf82f464 |
ole-package | OLE Ole10Native stream: Ole10Native | 1953 bytes |
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