Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 aba6ec88328f6094…

MALICIOUS

Office (OLE) / .XLS

169.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-06-22
MD5: f812648ad8ea0cb95da3d4e3f2c0c38c SHA-1: 05708f72c182f21563e4bd77e15c162aa2975795 SHA-256: aba6ec88328f609451b9ee7a1134f7bfa4011ca0ed286493aea4d7fb90fc2a94
108 Risk Score

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.
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.

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