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

Static analysis result for SHA-256 9be6c2addc892b22…

MALICIOUS

Office (OLE) / .XLSX

1.39 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 0a22bcab952f9303cfc6019c43534a2c SHA-1: 81b41eebffa0c6a99cbc6bc33627ddf74987d815 SHA-256: 9be6c2addc892b22ba3554c2c9e8eba1196d6197e794dc12859cff0a87770bd1
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell T1059.001 PowerShell T1059.003 Windows Command Shell T1059.004 Python

The file exploits CVE-2017-0199, a known vulnerability in Microsoft Office that allows for remote code execution via crafted OLE objects. The heuristic indicates that the exploit attempts to load a remote URL, specifically 'greatsupportingskillwithbetterfuturegivenmebestattitudetogoforbestenterthings.asia@st3.pro/41FwPzr', which is highly suspicious. No VBA macros were found to contain executable statements, suggesting the primary malicious functionality relies 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://greatsupportingskillwithbetterfuturegivenmebestattitudetogoforbestenterthings.asia@st3.pro/41FwPzr
  • 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