Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 78550c3d9f13f7d0…

MALICIOUS

Office (OLE) / .DOC

129.4 KB Created: 2020-10-14 06:49:00 Authoring application: Microsoft Office Word
MD5: 03b910de876154ddcb11183e7e0d3504 SHA-1: edeaec90124e912b7ac37ec011d6ae6e8d1308aa SHA-256: 78550c3d9f13f7d0275e417f1bde766b3287ce3ee5f034b3079405328b079c25
202 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 Emotet signature. Static analysis reveals the presence of VBA macros, including a Document_Open auto-execution macro and a CreateObject call, indicating an attempt to run malicious code upon opening. The VBA script is heavily obfuscated but contains calls that suggest it is designed to download and execute a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9777975-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9777975-1
  • 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
  • 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
a1e06d58d65c5e173202fee73d0c268d74efbb2eb6a720ea5c8df5105ab9225c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 9557 bytes