Office (OLE) / .XLS malware analysis — malicious · 57b1e7f094836b89

MALICIOUS

Office (OLE) / .XLS

1.12 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 94d52f7b132f459b88ba2b9c6ed076cb SHA-1: 6970a28538c35aa1c20b32a855e40c85842025d7 SHA-256: 57b1e7f094836b89c613e86a12966702169ead968058ac24c738b891bb8fa01e

68 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical heuristic firing for CVE-2017-0199 indicates that the OLE object is configured to load a remote resource via a URL moniker. The embedded URL, http://woi.gg/poqZbi, is highly suspicious and likely serves as the initial download point for a secondary stage payload. No VBA macros were found to be executable, but the exploit itself is sufficient for initial compromise.

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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