Emotet Office (OOXML) / .XLSX malware analysis — malicious · b8d6e0df3dd8ad9b

MALICIOUS

Office (OOXML) / .XLSX

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

MD5: 5493c741b3e017e72ee15c8704e6e6c8 SHA-1: 42fde0c06b8ea5a0e285113e80ac879abc1011ac SHA-256: b8d6e0df3dd8ad9b365ca3a92a920226ce122f5ef7fbc60e6c9c7a1fff068d35

200 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Xls.Downloader.EmotetExcel02223-9938902-0', indicating it is likely an Emotet variant. The presence of a Workbook_Open macro and CreateObject calls strongly suggests malicious VBA code execution. The script attempts to download and execute payloads from multiple URLs, including reconstructed URLs like 'http://sumedahonline.com/wp-content/HyzNXJ30XQVBSRH/', 'http://divachintetiles.com/wp-inc ludes/WBhWRKS8KvNzFm6/', 'http://hotelalandmalabol.com/1520/bUdhEPdf/', and 'http://shwenantawin.com/copma/XTnZJi02vfg'. It also creates batch and VBScript files in the 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` `a8371d95b7232191748db6ba2d699f830c99f30a7e72a2f6c356216e254e8e76`	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.