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

Static analysis result for SHA-256 84ba5d1012838f7c…

MALICIOUS

Office (OLE) / .XLS

1.18 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 983e123e9f114ba0922d02d01dfa7a8e SHA-1: aa074a1ac756b15f1fb9596bf56698d3b4382136 SHA-256: 84ba5d1012838f7cabe0a8c1c01509e4da5ce6c75d64df19524770c7d300516b
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote loader from the provided URL. The VBA macros themselves do not contain executable statements, but the exploit mechanism is clear. The embedded URL is the primary indicator for the second-stage payload.

Heuristics 3

  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://url.terryspace.io/RB2m3p

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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