Emotet Office (OOXML) / .XLSX malware analysis — malicious · 588d67768d02560a

MALICIOUS

Office (OOXML) / .XLSX

115.1 KB Created: 2015-06-05 18:17:20 UTC Authoring application: Microsoft Excel 12.0000

MD5: 9d096c7ad49cbbbf90de14a61843f2ec SHA-1: 3aa7074edc49424d58c35c1db613af4857aabe6c SHA-256: 588d67768d02560a738863ddec8a47a4aa4b13db7a3d2a4cfb3b4c8a7e0eed6e

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059.001 PowerShell

The file is identified as a malicious Excel document by ClamAV, specifically flagged as an Emotet downloader. The presence of a Workbook_Open macro and CreateObject calls indicates malicious VBA code execution. The DOC BODY reveals the script attempts to create and execute batch and VBScript files, and reconstructs a complex URL string for downloading a second-stage payload. The script also contains obfuscated PowerShell commands.

Heuristics 5

ClamAV: Xls.Downloader.EmotetExcel02223-9938902-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Downloader.EmotetExcel02223-9938902-0
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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 project inside OOXML medium OOXML_VBA

Document contains vbaProject.bin — VBA macros present

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `df1eb14c222394595c0518b49eec2b55ed9573146c5f1717dedceddd2e199a2b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	12041 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`vbaProject_00.bin` `d8e684b715a6b1ab49f106f3c2d11a9dd916c3fe27a29947fe05f1881b00f0e4`	vba-project	OOXML VBA project: xl/vbaProject.bin	42496 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.