Emotet — Office (OLE) / .XLSX malware analysis

Static analysis result for SHA-256 d1171e29bbc3c986…

MALICIOUS

Office (OLE) / .XLSX

129.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: ab5c9011105b547e220fb5b2a419de51 SHA-1: 720e15f89632e258d4903690c1efc0f8df3b9abb SHA-256: d1171e29bbc3c9864b506b7fd55d651bbda3ec1bdf9f1860d51503aa3d52a71e
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File T1105 Ingress Tool Transfer

The file contains a Workbook_Open VBA macro that utilizes Wscript.Shell to execute a batch file. The macro also attempts to download and execute a second-stage payload from multiple URLs. The presence of Wscript.Shell, CreateObject, and the Workbook_Open auto-execution, along with the ClamAV detection for 'Doc.Downloader.EmotetRed02220-9938909-0', strongly indicates Emotet activity. The reconstructed URL string is "http://santoftorilla.com/_baks/tUX9/,http://donbaham.com/Home_files/YS0PAPA Z yeraes/,http://barnhart-studies.com/eln-images/vg hg1n/,http://blue.com/3tech/jLu8IANnj3gK9WC/,http://zenzebra.net/plath/9Q0DBle/,http://marezdecor.com/eln-images/u0vT/,http://realacorp.net/PhotoGallery/Uw mRHceSGbaCeGF/,http://miniflam.com/eln-images/fSwbQUMAfGxdw/,http://marezdecor.com/MarezAgallery/SEQxWtPMJ7A8rAYtD/".

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
7a075e02dc1e88807280b9b84946715e79a3c091d50391301434649c77b78ea1		 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.

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