Office (OLE) / .XLT malware analysis — malicious · 4e55fdcc9fc053ff

MALICIOUS

Office (OLE) / .XLT

4.15 MB Created: 2007-04-22 17:10:03 Authoring application: Microsoft Excel

MD5: aaab7f0039e858fab3df40dc33657bfb SHA-1: cd54e28632225800ddc15fa99c5b7fcf63a26873 SHA-256: 4e55fdcc9fc053ff1c7e99890648bc8ce2d65450a7d588875c3342f93f1941e3

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is an Excel template (XLT) containing a Workbook_Open VBA macro. This macro is configured to execute code using CreateObject, a common technique for downloading and running additional malware. The presence of a large VBA macro and the Workbook_Open auto-execution heuristic strongly suggest this is a downloader. No specific family could be identified, and the embedded URL was confirmed benign.

Heuristics 6

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `18fbfb6dd7d6f6379a94466cda7818d9ed868dda6bc92e96683025a88a0ce55d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	234560 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.