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

Static analysis result for SHA-256 8754fb49e38cc268…

MALICIOUS

Office (OLE) / .XLS

102.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: acedafdaa52077c68bec74550e97af6c SHA-1: 6d7b97dd94aeac132570ce540fc128cc078f4ee5 SHA-256: 8754fb49e38cc2688ddd47afa541fb620830c91b2309bbecb85bb58b149ed151
80 Risk Score

Malware Insights

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

The file is an Excel 4.0 (XLM) macro-enabled spreadsheet. It contains an Auto_Open macro that utilizes dangerous formula APIs, specifically the RUN function, indicating an attempt to execute external code. The document body contains text that instructs the user to enable macros or editing, a common lure. The embedded URL http://www.boudheib.ae/dffbuhu/999999.png and the path C:\Programdata\Frijo are likely involved in the download and execution of a malicious payload.

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://www.boudheib.ae/dffbuhu/999999.png�
    • http://www.boudheib.ae/dffbuhu/999999.png

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
c32270e5fd4a15776820e2d4d6f5f4920d18d883470935419839449365a9c30d
xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 2081 bytes