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

Static analysis result for SHA-256 21944a6a3c05598d…

MALICIOUS

Office (OLE) / .XLS

88.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 976d437fbf1c1598413411d366092cb6 SHA-1: ab1c382ec0a25bd9881eee9a3401c9e1b78ee4e5 SHA-256: 21944a6a3c05598d1cdc6893c982e22d81344ff8bc8225811691512976aa6bcc
80 Risk Score

Malware Insights

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

The file contains Excel 4.0 macros, indicated by the OLE_XLM_AUTOOPEN and OLE_XLM_DANGEROUS_FN heuristics. The SE_ENABLE_LURE heuristic suggests the document prompts the user to enable macros. The presence of embedded URLs points to a likely download and execution of a second-stage payload. The XLM macros use the RUN function, which is a strong indicator of malicious intent.

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://miraclecollagen.co.za/ds/1802.Dc
    • https://miraclecollagen.co.za/ds/1802.gif

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
322d69d1d04d493e3e34f2e0b83bca8a4127f0eba1f3187b8b415b6797ecf613
xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 3269 bytes