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

Static analysis result for SHA-256 382cfb09c61dc04f…

MALICIOUS

Office (OLE) / .XLS

1.03 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 0c444d0ae2f596a194b8a60afddbcf20 SHA-1: 4b008c248685bdd3b8fa33e945549bcbcabda989 SHA-256: 382cfb09c61dc04fc8f420a28eda1364457d13c4432314274cc7814b01d6a12b
68 Risk Score

Malware Insights

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

The sample exploits the CVE-2017-0199 vulnerability using a URL Moniker to fetch and execute a remote payload from the provided URL. Although VBA macros were present, they contained no executable statements, indicating the exploit relies solely on the OLE vulnerability. The primary IOC is the URL used for payload delivery.

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://loooooooo.ng/2FImJVu1y703I8aa75TGZShEDRCl6nf3tunUgsLZklDh5iYzydkqA4RMKMS02zh4A5fSC
  • 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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