Office (OLE) / .XLS malware analysis — malicious · deaac86c28d7ae1c

MALICIOUS

Office (OLE) / .XLS

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

MD5: 6dc3b4342118b7dbf307d44149ac9f29 SHA-1: e2ddcebfec5bd24cd65c5835ca82ede19460a627 SHA-256: deaac86c28d7ae1c5d0890b968aeb8492af17f153318a7c2a62bb5f47ff81aae

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 specified URL. The extracted URL, https://loooooooooooooooooooog.com/kyG5w1, is the primary indicator for the second-stage download. Although VBA macros were present, they contained no executable statements, suggesting the exploit relies solely on the OLE vulnerability.

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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