Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 f0ebbd82816cd684…

MALICIOUS

Office (OOXML)

10.0 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 12.0000 First seen: 2019-01-11
MD5: 52f1818532d1eb1499152f8ce922d52d SHA-1: 6366164e038ff9a0fe9897a91a3651ba74cec2c2 SHA-256: f0ebbd82816cd684589eab0d178e22a42ff5a324d66ab2ac5c9d0cbbe650ac00
180 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical ClamAV heuristic 'Doc.Exploit.CVE_2017_11882-6934206-0' strongly indicates exploitation of the CVE-2017-11882 vulnerability. This vulnerability is present in Microsoft Equation Editor, which is embedded as an OLE object within the document. Successful exploitation allows for arbitrary code execution.

Heuristics 3

  • 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.
  • ClamAV: Doc.Exploit.CVE_2017_11882-6934206-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Exploit.CVE_2017_11882-6934206-0
  • 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: a57cfcca64f9df7ca8c02d14053070af6d8a5d8b3eb31fba2df7b45567eb0bd1
Detection
ClamAV: Doc.Exploit.CVE_2017_11882-6934206-0
Obfuscation or payload: unlikely

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