Emotet Office (OLE) / .XLSX malware analysis — malicious · 8d719692f436eaf5

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 602e5b7f10204d972817a62719fe86d7 SHA-1: 4b642cd76124d806e6726fe621120472ca6dd414 SHA-256: 8d719692f436eaf58f62d3b35e4050ba06bca3611faa29441e3d4445c52a1567

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The critical ClamAV detection and high-severity heuristics for VBA macros, CreateObject, and Workbook_Open indicate a malicious document. The embedded VBA script contains obfuscated PowerShell commands that reconstruct the following URLs for downloading a second-stage payload: 'http://store.uxdummmit.com/wp-admin/VfgBASQ7Z/', 'http://glorenentals.com/wp-admin/f1zezAKGTnS6i/', 'http://candiese.bimteractivegroup.com/1g94ngo/2n7wJoPuPDaenPcX/', and 'http://bacchileuratorpicolo.org/1g94ngo/2n7wJoPuPDaenPcX/'. The script also references paths for batch and VBScript files, 'c:\programdata\jledshf.bat' and 'c:\programdata\tghklsd.vbs', likely for execution or staging.

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.

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