Emotet Office (OOXML) / .XLSX malware analysis — malicious · bc85f2a7d7644f55

MALICIOUS

Office (OOXML) / .XLSX

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

MD5: 7b72d359413112a0b6e86c876c840483 SHA-1: 29899e17a2db34a61ca3166a82c8bb88aa0cf9f1 SHA-256: bc85f2a7d7644f552a9e8bd4f3aec09924defff9f954150c19fe99d901b77712

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Xls.Downloader.EmotetExcel02223-9938902-0, indicating it's likely an Emotet variant. The presence of a Workbook_Open macro and CreateObject calls strongly suggests malicious VBA code execution. The script attempts to create and execute batch and VBScript files, likely to download and run a secondary payload from the reconstructed URLs. The reconstructed URLs are: http://sumedahonline.com/wp-content/HyzNXJ30XQEVcBSBRH/, http://divachintex.com/wp-incudades/WWhWRKs8KvNzNfM/, http://hotelanmalaboa.com/1520/bUdhEPdf/, and http://shwenantawin.com/copma/XTnZJii02vfg.

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` `cdc5f720898d08e2d881b1e6840afc1ae1e6f25e90d625befe837031dd0e528d`	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.