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

Static analysis result for SHA-256 eb399cac8bd15228…

MALICIOUS

Office (OLE) / .XLSX

88.5 KB Created: 2022-02-14 05:58:53 Authoring application: Microsoft Excel First seen: 2022-02-22
MD5: d32b6327f5c5f49fc2d6211f739e0414 SHA-1: 9d0bf090f77a73522ae33cc41895aa15a2e64225 SHA-256: eb399cac8bd1522882a116ea60a9261abd9d6043d48ed4e05b037dbdb7bac3b7
280 Risk Score

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet02220-9940037-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet02220-9940037-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
98ce64e756a4ee3d4f776c1541f7f3ad0f966d786db88eda74f9a833f3a74b83		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11705 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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