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

Static analysis result for SHA-256 56e1dc98c932d92b…

MALICIOUS

Office (OLE) / .XLS

196.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 94c41969a6a283de0b8b9ec94e31b700 SHA-1: 484cb7930443fc984ccf0c17a7012f95fc5ab4d2 SHA-256: 56e1dc98c932d92b991a6e9eed98831d3010374c0714496cad29348738bbe0eb
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell T1204 User Execution

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to download and execute a remote payload from the specified URL. Although the VBA project contains no executable statements, the presence of the OLE vulnerability is sufficient to classify this as a malicious document attempting to download and run a second-stage payload.

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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