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

Static analysis result for SHA-256 e71b9928f43106fa…

MALICIOUS

Office (OLE) / .XLS

89.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: edf45beef3f501b1e1d068df7d051257 SHA-1: 12c3d34df63a5ee9dc6f5c97b91c022bc60b6ff4 SHA-256: e71b9928f43106fae545a05649a294bdc03e919200fedcc4ebfafb3dbeaf24cd
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications 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 RUN, indicating it likely executes arbitrary code. The document body contains text that appears to be a lure to enable macros or editing. The embedded URL is likely used to download a second-stage 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 https://fightershopkaunas.lt/ds/1902.gif�

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
bbd33517393cbce6ee65ec4f25759bc584a492e71d319574161752e5ce8a6fab		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 2686 bytes

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