Emotet — Office (OLE) / .XLSX malware analysis

Static analysis result for SHA-256 32bd118bdfd68ac0…

MALICIOUS

Office (OLE) / .XLSX

121.0 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 56cf579abce360c989d6cd4945c6c314 SHA-1: 267b149a383bc2262473af3145831906a82f7f5c SHA-256: 32bd118bdfd68ac052b6caef8dba17e064c45e10fb2a5b141291ec350ed63c90
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, specifically a Workbook_Open macro, which is a common delivery mechanism for Emotet. The script attempts to download and execute a second-stage payload from multiple URLs. The reconstructed URL is "http://youlandanda.org/eln-image/n8DPZISf/,http://roserviceviedo.net/eln-image/EjdcCoMLY8Gy/,http://vbaint.com/eln-image/H2pPGte8XzEN/,https://framemaker.us/eln-image/U5W2IGE9m8i9hr/,http://niplaw.com/asoLidfoundatio,http://robertmchileps-e.com/cgi/3f/,http://vocoptions.net/cgi/ifM9R5ylbVpM8hfr/,http://misinnynnc.org/fonts/JO5/,http://robertflolod.us/eln-image/DGI2YOkwSC9XPO/,http://mpmcomputing.com". The presence of Wscript.Shell and CreateObject calls further indicates malicious intent to execute external code.

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.

FilenameKindSourceSize
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.

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