Office (OLE) / .XLSX malware analysis — malicious · 8eef98b510e40720

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 5450992929544f4f210fde00d39414d0 SHA-1: d9dec4c7268d554930e109fe9e4f06864e49b239 SHA-256: 8eef98b510e4072097d8faf975ddc588e1050783786abe6ebea7594e8881b04b

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 attempts to load a remote resource from 'https://getabre.com/XgO3jw'. Although the VBA project contains no executable statements, the presence of the OLE vulnerability strongly suggests the file's purpose is to act as a loader for a secondary malicious payload. The file is an Excel spreadsheet, and the exploit targets a known vulnerability in how Office applications handle OLE objects and URL monikers.

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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