Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 e7fa2a17209d359c…

MALICIOUS

Office (OLE) / .DOCX

157.3 KB Created: 2021-01-12 22:19:00 Authoring application: Microsoft Office Word
MD5: 702afd932c1a8b93d9550202a5b430b3 SHA-1: a7c537e5c40d706744d4afeadd75fad6c972033a SHA-256: e7fa2a17209d359c64add22c0de40f7f9189e8bd88e22d26aa7a441e2df65826
242 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02224-9938637-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' auto-executing macro that utilizes 'CreateObject'. This indicates the macro is designed to download and execute a second-stage payload, a common characteristic of Emotet. The embedded URL, though benign according to reputation, is listed as an IOC due to its presence in the document.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
f080f423f3af32bf8c04d24f919af2345f2f15905193e2101e5f7b51599e8466
vba-macro oletools.olevba.extract_macros (decoded VBA source) 7512 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.