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

Static analysis result for SHA-256 3eec64eb102a0d35…

MALICIOUS

Office (OLE) / .XLS

73.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 776334d906a9d459b59d92149ed65361 SHA-1: caedb10e8deb13ef8bcd80b94c454c94cc2c4531 SHA-256: 3eec64eb102a0d357c43f8d6d23e3f6688178704e8a67bf81af42854b96dd097
88 Risk Score

Malware Insights

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

The presence of XLM macros, specifically an Auto_Open macro utilizing dangerous formula APIs (RUN=0), indicates a malicious intent. The document also contains an 'enable macros' lure. The XLM macro likely attempts to download and execute a payload from one of the embedded URLs, such as http://growthlogix.com/golllkd/Dm.

Heuristics 5

  • 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
  • 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 http://growthlogix.com/golllkd/Dm
    • http://growthlogix.com/golllkd/530340.png

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
11d3f892e05d0bda35ab480aaa4ac20d64df2927e1e0ada2dd00e53f32ececab		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 3655 bytes
macros.bas
6482afb86d2ec7f1f8e6e88f38c92a22a2ebc9e6374d8b382d22d7c86011f736		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3253 bytes

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