Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 2f0e30e6c055ccd9…

MALICIOUS

Office (OOXML)

12.5 KB Created: 2018-03-14 13:56:47 UTC Authoring application: Microsoft Excel 15.0300 First seen: 2020-05-14
MD5: a19f7086a25953287a8286598ed969da SHA-1: 415058f03f39047c818379cb8093ccbe6f02fe92 SHA-256: 2f0e30e6c055ccd98662c4b7e1d4f3f134b0e68a859b26177bec4a0a2db2d7e4
100 Risk Score

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.
  • CVE-2018-0798 — anomalous Equation Editor native stream high CVE likely CVE_2018_0798_EQUATION_NATIVE_ANOMALY
    Embedded Equation Editor OLE data contains anomalous native stream bytes consistent with a CVE-2018-0798-style Equation Editor exploit. This is treated as likely CVE evidence because the Equation object is malformed and payload-like, but it does not match the exact public matrix-overflow byte signature.
  • 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 ooxml-ole-object OOXML embedded OLE part: xl/embeddings/oleObject1.bin 4608 bytes
SHA-256: c69e23a65133e4a0f5b6d5f5961fc89bedf0540405a108c1b2fc459d2db1ecfe
ooxml_oleobject_00_ole10native_00.bin ole-package OOXML xl/embeddings/oleObject1.bin Ole10Native stream: oLE10NaTIve 2119 bytes
SHA-256: eaf1333938968a6d87fec4e432aee3a44bed88d117eb23b7c318158bae0a5633

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