Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 776d3c4d0d162f45…

MALICIOUS

Office (OOXML)

18.4 KB First seen: 2019-05-10
MD5: 1d8165642771fc61089dc4bbcc11f730 SHA-1: a414d547094cd6058c9255282d4471d0109779fe SHA-256: 776d3c4d0d162f4524f2f3e8c15160d8bdafc16be1747666fff2ef9f6396ccc1
102 Risk Score

Heuristics 4

  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://en.wikipedia.org/wiki/Common_ApplicationThe In document text (OOXML body / shared strings)
    • https://admissions.psu.eduIn document text (OOXML body / shared strings)
    • https://www.khanacademy.org/.../applying...application.../filling-out-the-college-appli...EachIn document text (OOXML body / shared strings)

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 4096 bytes
SHA-256: f9e6b0c8ed11aa8fde7e390f82dfdf397856c15dcd1e75cd914cc3f2ef3e1a98
ooxml_oleobject_00_ole10native_00.bin ole-package OOXML xl/EMBEdDIngs/oLEOBJeCT1.bin Ole10Native stream: OLe10nAtIvE 1785 bytes
SHA-256: c5af2ec2c91f53caca3528d3ea27e063d3930f389c29bbdc6cd5af4e0e226e93

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