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

Static analysis result for SHA-256 f48b5a16d06fa932…

MALICIOUS

Office (OLE) / .XLS

188.0 KB Created: 2015-06-05 18:19:34 Authoring application: Microsoft Excel
MD5: 731d8925af3f5e5a16b455b852a4d5e7 SHA-1: 463bff469a9076bf8d2a303b2abdd764887509f1 SHA-256: f48b5a16d06fa9329c226e3912759867cbfceb1d3d566eaf846f5e7695a6f59c
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file is an Excel spreadsheet containing Excel 4.0 macros, indicated by the OLE_XLM_AUTOOPEN and OLE_XLM_DANGEROUS_FN heuristics. The macro uses the RUN function to execute code, likely to download a payload from the embedded URL 'davidachim.com/wpold/document.php'. The document body contains obfuscated text that may be related to the macro's execution or lure. The presence of XLM macros and the download functionality suggest a downloader or initial access stage.

Heuristics 3

  • XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FN
    Excel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • 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://www.iec.ch
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/photoshop/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
38d60eee1e29da7937e8bf9335454756ac61c75039052a56c57ef465d2528720		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 11679 bytes

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