Malicious Office (OOXML) / .XLSX — malware analysis report

Static analysis result for SHA-256 dc6e207de8d2a4ff…

MALICIOUS

Office (OOXML) / .XLSX

711.7 KB Created: 2010-06-04 08:55:28 UTC Authoring application: Microsoft Excel 15.0300
MD5: 2e09dd3b63476290fadb7da20b5beed9 SHA-1: c32f53f312efb6d0dd99165cef588362f01b51ee SHA-256: dc6e207de8d2a4ff2feca507ed1ee1179004d1cf526d5563cf735e40df9518bd
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The file is an Excel spreadsheet containing an embedded OLE object identified as an Equation Editor. This is a known technique for exploiting vulnerabilities to execute arbitrary code. The embedded object is the primary indicator of malicious intent, suggesting the document is a lure to trigger an exploit. No scripts were extracted, and the document body text appears to be legitimate business communication, not directly related to the exploit.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/qxnQ09P.kbC 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
4511bdf668fc193ad7bc2b56294595140d599fb6b2684cca3cf8acb50327841b		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/qxnQ09P.kbC 992256 bytes
ooxml_oleobject_00_ole10native_00.bin
dd876966b9ec0493a2306900c42a9371f6b56c76c07b3f3dcd38f671ad9cda28		 ole-package OOXML xl/embeddings/qxnQ09P.kbC Ole10Native stream: oLE10NaTIvE 981785 bytes

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