Emotet Office (OLE) / .XLSX malware analysis — malicious · 2f886b9dddadd04a

MALICIOUS

Office (OLE) / .XLSX

123.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: f789795223baf9162d7a3331a1b6f2d3 SHA-1: 2b46d634e72e7ba036aa620cbd50be8804d1a17b SHA-256: 2f886b9dddadd04afaed9039028ebebb8427c3635c1f0d8af386851e42cbaa55

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and multiple high-severity heuristics, including OLE_VBA_PCODE_AUTOEXEC_EXEC and OLE_VBA_CREATEOBJ, indicate malicious VBA code. The Workbook_Open macro is designed to execute Wscript.Shell, which is used to create two files, 'yhjlswle.vbs' and 'ughldskbhn.bat', in the 'c:\programdata' directory. The script then attempts to download and execute a second-stage payload from a list of hardcoded URLs. The reconstructed URL 'http://harperhoproduccts.com/MerchAn2/ARSf1LICoauhH1rDrI/A' is a primary IOC.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02220-9938909-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02220-9938909-0
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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 macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `de7bcbc45ff0a77d05d9af662bacc316e71be11a980e94f6673e556a5dd9d1bc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12808 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.