Office (OLE) / .XLS malware analysis — malicious · d4571d781718a787

MALICIOUS

Office (OLE) / .XLS

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

MD5: 28795274503d8d74d85408746a7d1def SHA-1: 151fb154f9c1eb44528b2b221279e1a242f9c4cc SHA-256: d4571d781718a7871ea17ac8e91e17623319b921de2c9fb3a369f466cfde8683

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 the primary indicator of compromise. No VBA macros were found to contain executable statements, but the OLE structure itself is the vector for exploitation.

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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