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

Static analysis result for SHA-256 e311db3d828f1880…

MALICIOUS

Office (OLE) / .XLS

355.5 KB Created: 2009-01-30 06:42:42 Authoring application: Microsoft Excel
MD5: f8ec224f840df4e32a287200fde6f6d0 SHA-1: 22cc111ef325eed1967087f12039c7691f51314c SHA-256: e311db3d828f1880e2f176e3f8ba6aeced4a6dfef5232f71e80f095f779e551b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File T1059.005 Visual Basic

The sample is an Excel spreadsheet containing VBA macros, specifically a Workbook_Open macro, which is a common technique for malware delivery. The document body instructs the user to 'Please Enable Macros to View BoQ information', acting as a lure to bypass security settings. The presence of VBA macros and the explicit instruction to enable them strongly suggest a macro-based attack pattern aimed at tricking the user into executing malicious code. No specific family could be identified, but the behavior is consistent with a downloader or initial access payload.

Heuristics 4

  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
ce40dc62676129a7ffb78c501c2875efa6b3f6f9f8a8cc697ee188fdca492f38
vba-macro oletools.olevba.extract_macros (decoded VBA source) 82789 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 71 Chr/ChrW string-construction calls.