Emotet Office (OOXML) / .XLSM malware analysis — malicious · 438ce0e0b9045498

MALICIOUS

Office (OOXML) / .XLSM

46.2 KB Created: 2006-09-28 05:33:49 UTC Authoring application: Microsoft Excel 12.0000

MD5: 75e6fbbb6ff04fa90bbd6d63e6b022de SHA-1: 1a435825c509478f319118ca0e5595d66d79da18 SHA-256: 438ce0e0b90454985311464bd9dc097889d62cf6c477d254fec5180ea5ca25f7

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is an XLSM document containing VBA macros, specifically a Workbook_Open macro, which is a common delivery mechanism for Emotet. The script attempts to download and execute a payload from the URL 'http://visteme.mxx/shop/wp-ad'. The ClamAV detection name 'Xls.Downloader.EmotetExcel112100-9910690-0' further supports the Emotet family attribution.

Heuristics 5

ClamAV: Xls.Downloader.EmotetExcel112100-9910690-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Downloader.EmotetExcel112100-9910690-0
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` `8163168ccf1004e30fe18e0c3086df394975e779412ef3061e4007da68b2887d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	4962 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` `1d438f9956c62b52fee13d1ee97344e74c069c5158e2fe8c2c4bf76579b99ecc`	vba-project	OOXML VBA project: xl/vbaProject.bin	24576 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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