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

Static analysis result for SHA-256 01e53b9358343bf7…

MALICIOUS

Office (OLE) / .XLS

200.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 5559688e3313b140722c7bbf01eb84bd SHA-1: 822bdc70a893d7118ab7fe1c57f08dcfb475c963 SHA-256: 01e53b9358343bf7bb94b7e6b01f0abed69c446895bedbad54dc3372f6de80e9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing for CVE-2017-0199 indicates that the OLE object attempts to load a remote resource from the provided URL. This is a common technique for downloading and executing a second-stage payload. The VBA macros are present but contain no executable statements, suggesting they are not the primary execution vector. The ClamAV detection further supports the malicious nature of the file.

Heuristics 4

  • 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.
  • ClamAV: Xls.Downloader.Trojan-aa0b8f388d8573cd-aa0b8f388d8573cd-9950439-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Trojan-aa0b8f388d8573cd-aa0b8f388d8573cd-9950439-0
  • 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://provit.uk/ULmPKq?&steven=abundant&hall=witty&fresco=erect&facet=squealing&difference=whimsical&backbone

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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