Emotet — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 ce86fc2a427d74da…

MALICIOUS

Office (OLE) / .XLS

123.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 898095c5b157090de00ff3b30d8e7b0c SHA-1: e2e26891604ecd696970e1031014acf5f3318bbf SHA-256: ce86fc2a427d74da0c0493a847ed85987177e21f5c024a81fded3daa786b14f8
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02220-9938909-0'. The Workbook_Open VBA macro uses Wscript.Shell to execute commands, including downloading and running a VBS file from a hardcoded URL. The script attempts to establish persistence by writing to the registry and executing a batch file. The reconstructed URL for the payload is 'http://harpehoproducts.com/Merchan2/ARSf1LIcOauhH1rDrI/'.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02220-9938909-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02220-9938909-0
  • 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.

FilenameKindSourceSize
macros.bas
de7bcbc45ff0a77d05d9af662bacc316e71be11a980e94f6673e556a5dd9d1bc
vba-macro oletools.olevba.extract_macros (decoded VBA source) 12808 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.