Emotet Office (OLE) / .XLS malware analysis — malicious · a26ac605b404cad4

MALICIOUS

Office (OLE) / .XLS

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

MD5: bf2e6a59b11fc4bc3e37b2e45f9050f2 SHA-1: a4c7060dc9f13e2d7635adbbb886fa7c8b63c2af SHA-256: a26ac605b404cad443ce2e6a1deacdaf622487779d76838d4c36ed1fecd37271

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The file is detected as malicious by ClamAV with the signature 'Doc.Downloader.EmotetExcel02226-9938630-0', indicating it's a known Emotet downloader. The Workbook_Open macro is present and configured to execute, which is a common Emotet delivery technique. The script attempts to create a scheduled task or run a batch file at 'c:\programdata\jledshf.bat' and includes obfuscated PowerShell commands that construct URLs for downloading additional payloads. The reconstructed URLs are: 'http://activatedes.laforetlanguages.com/wp-admin/BlkdOKDXL/', 'http://sbcopylive.com.br/rju/w/', 'https://trasix.com/wp-admin/y5Aa1jt0Sp2Qk/', 'https://www.parkingonsons.co.in/abc/Y6Y0fTbUEg6/', and 'https://bbc.com/wp-admin/aBc/'.

Heuristics 7

ClamAV: Doc.Downloader.EmotetExcel02226-9938630-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02226-9938630-0
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` `006c4f4d54d1c9bb906763adb0bd849cdbbe9d88f3fa78ad2d18ef6987f96c37`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8906 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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