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

Static analysis result for SHA-256 bae91a317418d4f0…

MALICIOUS

Office (OLE) / .XLS

1.47 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: dedbd93df32377bc48ff025b32f8ac58 SHA-1: 3a66c8b2bb153c63f0cd8478fead7b957520a31b SHA-256: bae91a317418d4f007dc4cc456692f7340383a4c10c3ee351de2f7e1676eaf05
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 sample exploits CVE-2017-0199, a known vulnerability in Microsoft Office applications, to download and execute a remote payload from the URL https://getabre.com/8HDyDr. The VBA macro itself does not contain executable statements, but the OLE structure indicates the exploit is present. This suggests a downloader or initial access mechanism for further malicious activity.

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://getabre.com/8HDyDr
  • 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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