Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 a3ebbc8ef9f373ca…

MALICIOUS

Office (OLE) / .XLS

1.63 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 132c6f3f5b30b8515b5c9d6181c4e2e4 SHA-1: 323af7f998a5de4714ed38d0f49a3b3e3d9fe91d SHA-256: a3ebbc8ef9f373ca6b0b89d2a03a446443886ca5bb7162024989bc95f4598a76
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote payload. The embedded URL, 'https://creambunmusttryitemswithgreathappinessgivngforbetterhappinestoevery.business@acessaurl.com/OK1hTrD', is the primary indicator of the malicious payload's source. No VBA macros were found to contain 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.
    URL https://creambunmusttryitemswithgreathappinessgivngforbetterhappinestoevery.business@acessaurl.com/OK1hTrD
  • 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.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673
vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes