Emotet Office (OOXML) / .XLSX malware analysis — malicious · 57e10062595f68e6

MALICIOUS

Office (OOXML) / .XLSX

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

MD5: 98c5cfa9e85fc2d223bf0a713f081b0e SHA-1: dedba68c6c65f3c5a5bd154095caccbb36a081ec SHA-256: 57e10062595f68e60fa91fa1d8ac2acd6321dfaec5de4143bd03be72ce6663ff

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Xls.Downloader.EmotetExcel02223-9938902-0, indicating it is likely an Emotet downloader. The presence of a Workbook_Open macro and CreateObject calls strongly suggests malicious VBA code execution. The script attempts to download and execute a second-stage payload from a reconstructed URL: "http://sumedahonline.com/wp-content/HyzNXJ30XQEVcBS RH/http://divachintex.com/wp-inc ludes/WWHWRKs8KvzNFm6/ ,http://hotelalandmalaabl.com/1520/bUdhE Pdyf/ ,http://shwenantawin.com/copma/XTnZJi02vfg", and also creates a batch file at c:\programdata\jledshf.bat and a VBScript at c:\programdata\tghklsd.vbs for execution.

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` `cd492894b13e02139e252ceedc5e833edf99a0062e66add17230b6934e5e91eb`	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.