Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a70aae90b80496bf…

MALICIOUS

Office (OLE) / .DOCX

152.8 KB Created: 2020-09-22 07:23:00 Authoring application: Microsoft Office Word
MD5: c2482092d43d274d11a491756da9679a SHA-1: 60f655cb54aac1aee4ee635bcaff1f64e8714d8e SHA-256: a70aae90b80496bf3e6fecac83092e344ac780125fdf6cf3ec7756ea73e71a51
280 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls, indicating an attempt to execute code upon opening. ClamAV detection confirms this as 'Doc.Downloader.Emotet-9765070-0'. The primary function of the detected macros is to download and execute a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-9765070-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765070-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
37ce3f491be0f3d0a753fc5c7339c798cd89a6843cff6094a48ab180ad94ccb1
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16563 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.