MALICIOUS
70
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.005 Visual Basic
The sample is an Excel file that exploits CVE-2017-0199 via an OLE2Link object to download a remote file. The embedded URL points to a .dOC file, suggesting a document-based exploit chain. No VBA code was found to be executable, but the critical heuristic firing indicates the exploit mechanism is present. The primary IOC is the URL used for the secondary payload download.
Heuristics 3
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OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199Document 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.
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VBA project contains no executable statements low OLE_VBA_MACROSDocument contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
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Embedded URL info EMBEDDED_URLOne 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 http://23.95.106.3/250/4/ioi0oi0ioiioiOI0IOIO0IOi0ioi0oi0oi0io00iooi00000%23%23%23%23%23%23%23%23%23%23%23%23%23%2300ioi0oi0o0oooOIOI0OIOI0OIoi0%23%23%23%23%23%23%23%23%23%23%23%23%23%2300000.dOC
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 1206 bytes |
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