Office (OLE) / .XLS malware analysis — malicious · 4e366229658b4ab9

MALICIOUS

Office (OLE) / .XLS

203.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-04-20

MD5: 334d0aa7ce060ad9abbb29312906cd6e SHA-1: 0e0e7ed72dfe922273ee88fbb75a77a5ee0b20c0 SHA-256: 4e366229658b4ab9e02e153016155c5b09050f59f035dc4339954fbac54536b1

140 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1559.001 Component Object Model and Distributed Component Object Model: Component Object Model

The critical heuristic firing for CVE_2017_11882_EQUATION_OLE10NATIVE indicates that the file contains a payload exploiting this known vulnerability within Microsoft Equation Editor. The presence of an Equation Editor OLE object further supports this finding. The exploit likely leads to arbitrary code execution.

Heuristics 3

Equation Editor Ole10Native payload — CVE-2017-11882 critical CVE likely CVE_2017_11882_EQUATION_OLE10NATIVE

An 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 CVE related OLE_EQUATION_EDITOR

Contains Equation Editor object — related to CVE-2017-11882 / CVE-2018-0802 exploitation, but CLSID presence alone is not the malformed MTEF exploit primitive.
x86 GetPC stub (CALL $+5; POP EDI) high SC_GETPC_CALL

x86 GetPC stub (CALL $+5; POP EDI)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ole10native_00.bin` `eb6c392d42361378ce50b266316ec76fbf1ef48e4d90afd5e827a9b2049224ce`	ole-package	OLE Ole10Native stream: MBD01CDE893/oLe10natIve	1378 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.