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

Static analysis result for SHA-256 5ad3844765185cbd…

MALICIOUS

Office (OLE) / .XLS

234.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 42573b58413c241948aa70f446235579 SHA-1: d2235d7d52a8d01cea84b18f93c67b42f32a8fac SHA-256: 5ad3844765185cbd580d67d8f6315e4453d7fb3b4cf6c55f31225b1e62b57811
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 payload from the provided URL. The VBA macros are present but contain no executable statements, suggesting they are not the primary execution vector. The embedded URL is the most critical indicator for further analysis.

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://ljg.cl/4GXW?&pelican=changeable&drummer=accessible&gearshift=aspiring&velvet=jumpy&hen=incandescent&carotene

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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