Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c5480c5bcd7c9b06…

MALICIOUS

Office (OLE) / .DOCX

161.8 KB Created: 2020-10-16 18:44:00 Authoring application: Microsoft Office Word
MD5: 84cfe44a87e5a1a05832fd89ed11b746 SHA-1: aa839f37411bf36a5c499d7b8866e25f56d2b3c8 SHA-256: c5480c5bcd7c9b06e744ebfca49ef98e45da1200c5e3762d6b47d9825189f3ea
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a VBA macro named 'macros.bas' and the 'Doc.Malware.Emotet-9778591-0' detection point to the Emotet family. The Document_Open macro is designed to execute malicious VBA code, which is typically used to download and execute further stages of the malware.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9778591-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778591-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fcaa38ed96b1b218739bafc5403c2803ab83f37a0565afb297027068f0a0ee86
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15517 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.