Emotet Office (OLE) / .XLSX malware analysis — malicious · c9b6bfc84b16f6e3

MALICIOUS

Office (OLE) / .XLSX

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

MD5: 432cb6779792514d23fd03f01a039bc3 SHA-1: 2098535af9fe446c6b20556360fbe1eb42653007 SHA-256: c9b6bfc84b16f6e3b90fdea013dbeb8c3522a29b28a8fe80b5e495c1f6503675

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV and exhibits high-severity heuristics indicating the presence of VBA macros, specifically a Workbook_Open auto-execution event, and the use of CreateObject. The DOC BODY and script content reveal a complex batch script that attempts to download and execute a VBScript payload from multiple URLs. The script also contains obfuscated PowerShell commands, likely for further payload execution or persistence. The reconstructed URL string is: http://youlanda.org/eln-image/n8DPZISf/ ,http://roseveideob.net/eln-image/EjdcCoMLY8Gy/ ,http://vbaint.com/eln-image/H2pPGte8XzENc/ ,http://framemakers.us/eln-image/U5W2IGE9m8i9hr/ ,http://niplaw.com/asoLidfoundatio,http://bobechtmichilesp.com/cgi/3f/ ,http://vocoptions.net/cgi/ifM9R5ylbVpM8hfr/ ,http://misiopinionny.org/fonts/JO5/ ,http://roberflod.us/eln-image/DGI2YOkw9XPO/ ,http://mpmcomputing.com. The VBA macro itself contains a MsgBox prompt, likely to lure the user into enabling macros, and then proceeds to execute the batch file.

Heuristics 7

ClamAV: Xls.Downloader.Emotet-ab81c42b2bd4747e-9951196-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Downloader.Emotet-ab81c42b2bd4747e-9951196-0
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` `faf50200d5a9adeeda00cc1da1bbf8f6abf0317a1e97a58db8ae804ba12ba446`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	13985 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.