Emotet Office (OLE) / .XLSX malware analysis — malicious · 5588fccc63e8d92c

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 12e67460bb216857fc767aa5d2f0e399 SHA-1: f9ba671c0cb431fdda7ef30a1e67f8b53b70a5cd SHA-256: 5588fccc63e8d92c70c0da7ce1a9bc1e096ef105f3f23e7328fd6d6ef2c7523b

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetExcel02222-9938901-0', strongly suggesting the Emotet family. The VBA macros contain obfuscated PowerShell commands that attempt to download and execute a second-stage payload. Specifically, the script reconstructs the following URLs for payload download: 'http://store.uxdummmit.com/wp-admin/VfgBSQR7Z/', 'https://glorenental.com/wp-admin/f12eA KGTnS6I/', 'http://candise.bmintaroup.com/1g94ngo/2n7wJoPuPDa nPcX/', and 'http://bacilhileratoporicolo.org/'. It also references batch and VBScript files in the 'c:\programdata\' directory.

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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