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

Static analysis result for SHA-256 e30f5ef889bf6399…

MALICIOUS

Office (OLE) / .XLS

1.12 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 2df5891ea70dcab4650bfa523d2fee2b SHA-1: 5dc406e063f3152c339fb7e314b772d774b7dee9 SHA-256: e30f5ef889bf6399c327a88409fd42a5e6a09d0ac5af1569dbf328bd9191573c
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File T1059.005 Command and Scripting Interpreter: Visual Basic

The file is an Excel spreadsheet that exploits CVE-2017-0199 via a URL moniker to download and execute a remote payload from the URL 'https://link.saja.market/NJZ0DCH3Uh?&walrus=mature&phase=fearless&embossing=unaccountable'. Although the VBA project contains no executable statements, the OLE structure itself is configured to trigger the exploit. This indicates a downloader or dropper functionality.

Heuristics 2

  • 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.
  • 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.

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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