Emotet Office (OOXML) / .XLSX malware analysis — malicious · 4077346098ca77e9

MALICIOUS

Office (OOXML) / .XLSX

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

MD5: 5802d212217ab20f09d1061d4548aba9 SHA-1: 6241150ebac9122f85060094e141977f5b7dd05b SHA-256: 4077346098ca77e9a162f34389ab6621a9743c06afb5337d45fd1b2ff8118423

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 obfuscated PowerShell commands that attempt to download and execute payloads from multiple URLs. Specifically, the script reconstructs the following download URLs: 'http://sumedahonline.com/wp-content/HyzNXJ30XQEVcBSRH/', 'http://divachintextiles.com/wp-incudades/WWhWRKs8KvNzNFm6/', 'http://hotelalandmalabo.com/1520/bUdhEpdf/', and 'http://shwenantawin.com/copma/XTnZii02vfgV'. It also references temporary files 'c:\programdata\jledshf.bat' and 'c:\programdata\tghklsd.vbs'.

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` `b2d41c75f023e49f4ad1b48cb718e82ed9730ec08694aa1b9767dd4e2a12dc70`	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.