Office (OLE) / .XLS malware analysis — malicious · 373c1397fce8f940

MALICIOUS

Office (OLE) / .XLS

453.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 1c1222272b88e5a9e3d83066b9a6ebe1 SHA-1: 2003e9398443502784d2bd1e02da3bc656316777 SHA-256: 373c1397fce8f9401b85b6c2485ed6f301470aa83e2b69f20d23e2f43cbb8a50

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.005 Service Execution: Visual Basic

The file is an OLE2Link object that exploits CVE-2017-0199, a known vulnerability for remote code execution. The heuristic explicitly identifies the exploit and the URL from which the payload is downloaded. No VBA macros were found to be executable, but the presence of the exploit is sufficient for a high confidence assessment.

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.

Filename	Kind	Source	Size
`macros.bas` `7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1206 bytes

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