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

Static analysis result for SHA-256 d8a44e966e0dd1c5…

MALICIOUS

Office (OLE) / .XLS

644.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2021-06-04
MD5: 3dd31774eaa854cc55a603906ce9d930 SHA-1: 19b6a02857fe286689713b4f0df80477e8418ce7 SHA-256: d8a44e966e0dd1c543897fbced70fbe288e3c5910b228dbaf3d154b40c0981d9
62 Risk Score

Malware Insights

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

The presence of Excel 4.0 macros (OLE_XLM_AUTOOPEN) indicates a macro-based attack. The macros contain strings that appear to be URLs, suggesting an attempt to download a second-stage payload. The specific URLs identified are dharamdiwan.in/njipkUcz/ork.html and unlenoirramosjr.com/7r9JyFLo/ork.html. The document body content is minimal and does not provide further context.

Heuristics 3

  • Excel 4.0 (XLM) macro sheet uses dangerous capability functions high OLE_XLM_DANGEROUS_FN_STATIC
    Workbook contains an Excel 4.0 macro sheet whose formulas reference two or more dangerous capability functions (e.g. CALL into a Win32 API such as URLDownloadToFile, EXEC to launch a process, REGISTER an external DLL procedure, or FWRITE/FOPEN to drop a file) with an Auto_Open / Auto_Close auto-execution name. This is the canonical XLM downloader/dropper shape and is recovered directly from the BIFF records, so it fires even when the full macro chain cannot be deobfuscated.
  • 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.
  • 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://dharamdiwan.in/njipkUcz/ork.html Referenced by macro
    • https://lenoirramosjr.com/7r9JyFLo/ork.htmlReferenced by macro