Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 6c7dc0763eb559e4…

MALICIOUS

Office (OOXML)

216.1 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 12.0000 First seen: 2019-03-18
MD5: 527b08c59397d77dbe704a6cc8711bf2 SHA-1: 9af3811ad01a66bd0d8954d79ffc26d02e1738f8 SHA-256: 6c7dc0763eb559e4b3cb10feeb54933efa582eb63842818fbe3738bc9f161216
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is an OOXML file containing an embedded OLE object, specifically identified as an Equation Editor object. This strongly suggests exploitation of a known vulnerability within the Equation Editor component to achieve code execution. No further details on the payload or specific exploit chain were available from static analysis.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/oleObject1.bin contains the Equation Editor CLSID, the legacy component exploited by CVE-2017-11882, CVE-2018-0802, and CVE-2018-0798.
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin ooxml-ole-object OOXML embedded OLE part: xl/embeddings/oleObject1.bin 4608 bytes
SHA-256: ed53ef7485a1d9232481f64190344712f03b49edb4e9c0490280b1bda6aa38cf

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