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

Static analysis result for SHA-256 9201cfa6d776fd62…

MALICIOUS

Office (OLE) / .XLSX

151.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 1cc4d9427d67e41a413161154aa0af85 SHA-1: 36b2862439146c07450bed671ac927670a625e32 SHA-256: 9201cfa6d776fd62eca90b5bfa671f7f6531207a3861f70d42785723b9eb6855
280 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is an Excel spreadsheet containing VBA macros, specifically a Workbook_Open macro that executes code. The script attempts to download and execute a second-stage payload using PowerShell. The reconstructed PowerShell command is: "http://store.uxdummmit.com/wp-admin/VfgBASQR7Z/", "http://glorenental.com/wp-admin/f1ezAeKGTnS6I/", "http://candies.biminteractive.org/1g94ngo/2n7lJoPuPDaX/", "http://bacilleatoropocircles.org/". It also writes a batch file to c:\programdata\jledshf.bat and a VBScript to c:\programdata\tghklsd.vbs.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetExcel02222-9938901-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02222-9938901-0
  • 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
df1eb14c222394595c0518b49eec2b55ed9573146c5f1717dedceddd2e199a2b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12041 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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