Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 01d1e30e7bcf02ba…

MALICIOUS

Office (OLE) / .XLS

1.43 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: a17ca351a409d85b7c581e01f5529acb SHA-1: ef1a17649be8413319457c43e70d701b49dce9ab SHA-256: 01d1e30e7bcf02ba8abd492e3c6a8f885e8299f22dafbdd312d1f4dac0d7cfa4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.005 Visual Basic

The critical heuristic firing for CVE-2017-0199 indicates that the OLE object is attempting to load a remote resource via a URL moniker. The embedded URL, https://weneedbestopporunititiestogivebestthingswithbetterperformanceforentiretime.busienss@link.scogo.in/OXJR6E, is likely the source of the secondary payload. Although VBA macros were present, they contained no executable statements, suggesting the exploit relies on the CVE-2017-0199 vulnerability directly.

Heuristics 4

  • OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199
    Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.
  • NOP-equivalent sled detected medium SC_NOP_EQUIV_SLED
    Long run of 0x61 bytes
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • 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://weneedbestopporunititiestogivebestthingswithbetterperformanceforentiretime.busienss@link.scogo.in/OXJR6E

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes

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