Emotet Office (OLE) / .XLSX malware analysis — malicious · 56997036424a2fcd

MALICIOUS

Office (OLE) / .XLSX

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

MD5: efa1111e4fdc9d271972aaf189294cdd SHA-1: 8d67f057ccc29bf3d5d14604bfd21ac954472a9d SHA-256: 56997036424a2fcda4be8459aebba05c2a75a24d7ecad695d5f0b2b6838454cc

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is detected as malicious by ClamAV with the signature 'Doc.Downloader.EmotetExcel02222-9938901-0', indicating it's likely an Emotet downloader. The VBA macros contain obfuscated PowerShell commands that attempt to download payloads from multiple URLs. Specifically, the script reconstructs the following download URLs: 'http://store.uxdummmit.com/wp-admin/VfgBASQ7Z/', 'http://glourenatals.com/wp-admin/f1zezAKGTnS6I/', 'http://candise.bimteractivegroup.org/1g94ngo/2n7wJoPuPDaenPcX/', and 'http://bacchileatoropociclos.org/'. It also writes a batch file to 'c:\programdata\jledshf.bat' and a VBScript to 'c:\programdata\tghklsd.vbs'.

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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