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

Static analysis result for SHA-256 8d0126bd1498fc5e…

MALICIOUS

Office (OLE) / .XLS

1.24 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: bc25257b1018285ac0eb3ce5d8aa2121 SHA-1: 51564987f2db2ce0e6827c1048816d924945c360 SHA-256: 8d0126bd1498fc5e880f218cbda61b75b5387c9322d2876f7027b98baed9a194
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 the specified URL. This suggests the file acts as a loader for a secondary stage payload. Although VBA macros were present, they contained no executable statements, indicating the exploit is likely embedded within the OLE structure itself rather than executed via macro code.

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.

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

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