Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 617210c78529a1ca…

MALICIOUS

Office (OLE) / .DOCX

199.3 KB Created: 2020-09-17 11:51:00 Authoring application: Microsoft Office Word
MD5: 185afdd549a1453adc359baa517c844f SHA-1: 0b01784857bf2ac10b78e0f7254dec6012a48f36 SHA-256: 617210c78529a1ca3709f0bc7a1c4d0c935cc26f928f7daea6df763c8d3326ca
204 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with a specific signature indicating it's a dropper for Emotet. High-severity heuristics confirm the presence of VBA macros, including a Document_Open auto-execution macro and a CreateObject call, which are commonly used to download and execute further stages. The VBA script itself appears to be obfuscated but its structure and the presence of auto-execution routines strongly suggest a payload delivery mechanism.

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).