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

Static analysis result for SHA-256 72141556af5d0ee2…

MALICIOUS

Office (OLE) / .XLS

367.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: ca6dd3c3f41f62af437c10486beb0121 SHA-1: e5e45b0b042a4f6fc87b70734fbb0301ba292882 SHA-256: 72141556af5d0ee2a5877b2fe1eb9420168c726d3647a17e3fa83ff4c8a3ea5d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

This Excel 4.0 (XLM) macro-enabled workbook contains an Auto_Open macro that attempts to download a payload from two distinct URLs. The document body contains obfuscated strings that, when reconstructed, reveal these URLs. The presence of an 'enable lure' heuristic indicates the document likely prompts the user to enable macros, a common tactic for initial execution.

Heuristics 4

  • Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAME
    oletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
  • 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://smartpalakatva.com/edQsUZOLlE/th.html
    • https://pilstlcommodities.com/Ov4FlB3lpy/th.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
e61304013e31eadd8bf35fc5d3e6cbadd61463966f2a2d09ae24f65eb0ee3106
xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 8349 bytes