Qbot — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 1d272e8d6f68df8a…

MALICIOUS

Office (OLE) / .XLS

47.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 873268019ccee487ee072c665801e32c SHA-1: 3ea73e99a6d9e394db6d379496768d5e2b03e930 SHA-256: 1d272e8d6f68df8a7e5dc351213e23d8a0be207956d94d4ecd895f72299eaba0
200 Risk Score

Malware Insights

Qbot · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File T1071.001 Web Protocols

The file contains Excel 4.0 macros, specifically an Auto_Open function that utilizes the URLDownloadToFile API. This indicates the macro is designed to download and execute a second-stage payload from the embedded URLs. The ClamAV detection as 'Xls.Dropper.Qbot' strongly suggests the Qbot family. The document body contains a lure to encourage macro execution.

Heuristics 6

  • Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD
    Reference to URLDownloadToFile API
  • ClamAV: Xls.Dropper.Qbot-9798074-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.Qbot-9798074-0
  • 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 http://dimas.stifar.ac.id/vjrzzufsu/�
    • http://dimas.stifar.ac.id/vjrzzufsu/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
857fae3dde766526b3de621d7f48e792e1a3a31b0bb941d6893cf28f50d31b35		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 3017 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.