Office (OLE) / .XLS malware analysis — malicious · d5783a093a8d7e7d

MALICIOUS

Office (OLE) / .XLS

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

MD5: 00b8145f83e0f0ad3b7eabc95e2409ba SHA-1: aa4285b3163cecf698d054515c63498bb5a54e04 SHA-256: d5783a093a8d7e7df7e2562715624e8b7f5e30271b3245ff43adc35f982724a5

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

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 a provided URL. The extracted URL is highly suspicious due to its structure and domain. No VBA macros were found to contain executable statements, but the core vulnerability is present.

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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