Emotet Office (OOXML) / .XLSX malware analysis — malicious · 8e8e71c6053262b2

MALICIOUS

Office (OOXML) / .XLSX

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

MD5: 6cdff9f343cad7cb1241b5c2f2f1d75f SHA-1: 39c2cecfdafc427ada590a69f197a19067a31dee SHA-256: 8e8e71c6053262b29d84690f12cf5e7a69ea332fcf29e0164e658f7747f8407b

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature 'Xls.Downloader.EmotetExcel02223-9938902-0', strongly suggesting the Emotet family. The presence of a Workbook_Open macro and CreateObject calls indicates automated execution upon opening. The embedded VBA script contains heavily obfuscated PowerShell commands that reconstruct a URL and attempt to download and execute a second-stage payload. The reconstructed URL is 'http://sumedhaonline.com/wp-content/hYnJX300XQEVBCBRH/, http://divachintex.com/wp-incluedes/WBhWRKs8KvzNFm6/, http://hotelalandmabalo.com/1520/bUdhEpdY/, http://shwenantawin.com/copma/XTnZJi02vfgV'. Additionally, it attempts to write batch and VBScript files to the 'c:\programdata\' directory.

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` `379f4a7c8595db7b2c9fc5697f37c5df082ef0d78f56e72426a0a8c9ac300998`	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.