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

Static analysis result for SHA-256 548b01148352d002…

MALICIOUS

Office (OLE) / .XLS

1.13 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 415913eedf8912ea3c5e69d94deb0953 SHA-1: cf60de9eeb0434f6c4ab0d1a3a6b875e9f2ac9bc SHA-256: 548b01148352d0029f44b6c4d15f6ae1d1f0edcfe2971cf2020700b910d4d5f0
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell T1105 Ingress Tool Transfer

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to load a remote resource from the URL 'https://loooooooooooooooooooog.com/MRYDr'. This suggests the file acts as a downloader for a secondary payload. No VBA macros were found to be executable, but the primary threat is the remote code execution 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://loooooooooooooooooooog.com/MRYDr
  • 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

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