Emotet Office (OLE) / .XLSX malware analysis — malicious · e7050448eb2a7866

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 8ed9586e8c2c9f4a4aa493c6fe538b4a SHA-1: fefb0f89b17acece177bf5a27ffe6888892c1af1 SHA-256: e7050448eb2a7866f588bd2636a820fb0d1a03a9c030fe9d99b2fa5bfb9fe232

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic

The file contains VBA macros, specifically a Workbook_Open macro, which is a common delivery mechanism for Emotet. The macro utilizes Windows Script Host (Wscript.Shell) to execute a batch file and a VBScript. The script content, when partially reconstructed, reveals multiple URLs that are likely used to download and execute a second-stage payload. The ClamAV detection also strongly suggests Emotet. The reconstructed URLs are: http://store.uxdummmit.com/wp-admin/VfgBSQ7Z/, https://glouren.com/wp-admin/f12ezeAKGTnS6I/, http://candise.bimtemporaryroup.org/1g9ngo/2n7wJoPuPDaX/, and http://bacchilatoroporicolo.org/1g9ngo/2n7wJoPuPDaX/.

Heuristics 7

ClamAV: Doc.Downloader.EmotetExcel02222-9938901-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02222-9938901-0
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` `df1eb14c222394595c0518b49eec2b55ed9573146c5f1717dedceddd2e199a2b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12041 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.