Office (OLE) / .XLS malware analysis — malicious · d5990a91467b0780

MALICIOUS

Office (OLE) / .XLS

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

MD5: a8376586d7b5b21733375126e48235c8 SHA-1: 89a6e67fc29297516110a332fbb9f454d8e06054 SHA-256: d5990a91467b0780712a4015bec2caf076e7556856a5bff08b892ddb9932191d

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 the provided URL. The VBA project contains 1206 bytes of source code, suggesting it is likely involved in the execution or staging of the payload. The extracted URL is the primary indicator of 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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