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

Static analysis result for SHA-256 96175ad7703c5e1e…

MALICIOUS

Office (OOXML) / .XLSX

613.8 KB Created: 2020-01-08 16:45:10 UTC Authoring application: Microsoft Excel 12.0000
MD5: eb93fc661361cb451a46cb98964504c5 SHA-1: 2f3915ce10dbc0dc9b3f9172c421f14caa2078a4 SHA-256: 96175ad7703c5e1e1b479f8e5fd3b36061cb28c701bbcff0f10627982bc82641
60 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking T1204.002 Malicious File

The file is an Excel spreadsheet containing an embedded OLE object identified as Equation Editor. This is a high-severity heuristic firing, indicating a likely exploit attempt. The document body contains what appears to be a fabricated order or inventory list, likely intended to trick the user into interacting with the embedded object. No scripts were extracted, and no URLs were found.

Heuristics 2

  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Embedded OLE object xl/embeddings/gMpY1n.lwfAH0 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
e64f09dfc7a2a3ed58226b2505f97442fc5d4988ccd9e9573e9786b9f735e614		 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/gMpY1n.lwfAH0 886784 bytes
ooxml_oleobject_00_ole10native_00.bin
95076529523fac2baae1aa14cde3c189f96a3f53293bc28cb7c131af70d73664		 ole-package OOXML xl/embeddings/gMpY1n.lwfAH0 Ole10Native stream: OlE10nATIVE 877274 bytes

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