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

Static analysis result for SHA-256 f5a01fcc2bd2ae98…

MALICIOUS

Office (OLE) / .XLS

110.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 71c4e020ef7dc453607229558a8a1316 SHA-1: a79371cf253edf2b69499f7a97d53f80022136ca SHA-256: f5a01fcc2bd2ae98b853c386030b7989197b735112647b7d30a757bc0ffa6f5f
80 Risk Score

Malware Insights

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

The sample is an Excel 4.0 (XLM) macro-enabled spreadsheet. It contains an Auto_Open macro that uses dangerous functions, specifically the RUN function, to execute external code. The document body text and heuristics indicate a lure to enable macros, a common tactic for delivering malicious payloads. The XLM macro likely attempts to download and execute a payload from the embedded URL http://heavenlyhealinghands.org/beezxvdsxe/555555555.png.

Heuristics 4

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://heavenlyhealinghands.org/beezxvdsxe/555555555.png�
    • http://heavenlyhealinghands.org/beezxvdsxe/555555555.png

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
decffbfc06775db1a02dfd3aa7ab4fe1dbe5ee668d4247ddf03bb1fb35d9aa93
xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 4733 bytes