Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0b04fdce5725ba5d…

MALICIOUS

Office (OLE) / .DOCX

199.5 KB Created: 2020-09-17 11:51:00 Authoring application: Microsoft Office Word
MD5: 0057b75dddd7e2b6547b5b77be023684 SHA-1: aa24c88e14fc3e1bc02e5e34c6bc938a06f9b067 SHA-256: 0b04fdce5725ba5de02a44d8b2f971447d909cd8462fec771030a4a2c9ca2d8c
204 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms this as 'Doc.Dropper.EmotetWinMob0920-9636503-0', a known Emotet variant. The VBA code appears to be obfuscated but the presence of auto-execution and object creation strongly suggests it's designed to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetWinMob0920-9636503-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetWinMob0920-9636503-0
  • 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.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Suspicious extracted artifact info 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.
  • 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
c3286e68fa3d09f0094cde843da13ffd003c4769e3d53082fc234c009c46407c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19881 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 20 long base64-like blob(s).