Office (OLE) / .XLSX malware analysis — malicious · 270c0a61d9cbd2b9

MALICIOUS

Office (OLE) / .XLSX

1002.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 92e4358540657f581e6f93c91ef1358d SHA-1: 9e82fcfa39e4f13b4d0c207a4d81b4abef6b5dcf SHA-256: 270c0a61d9cbd2b9e3358156f847eea86772733b664a63189e608cce599e05b4

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The sample is a malicious XLSX file that exploits CVE-2017-0199 via a URL moniker to download and execute a remote payload. The embedded URL, 'https://realthisthingsarebetterimprovementswithbetterthingstodorightplacesgive.business@links.dansarindustries.com/U8CgG4', is indicative of a malicious download source. Although VBA macros were extracted, they contained no executable statements, suggesting the exploit is directly leveraged by the OLE structure.

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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