Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 074f9930c082c658…

MALICIOUS

Office (OLE) / .DOCX

130.5 KB Created: 2020-10-14 12:13:00 Authoring application: Microsoft Office Word
MD5: f523a3301a454883152255604d3d4daf SHA-1: c1f28969fda6777a7371807b3a826383559cb046 SHA-256: 074f9930c082c658958a6361400d67523548202a2329e0c306c9a5481855ec3a
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9778018-0', indicating a known downloader variant of the Emotet family. The presence of a 'Document_Open' macro that uses 'CreateObject' strongly suggests the execution of malicious code upon opening. The VBA script, though obfuscated, is designed to download and execute a second-stage payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778018-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778018-0
  • 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
  • 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
9ff2f6164d63cd97fef8963d2b7a6ca348ed28032df5d8d3d018a1f3d500bd9b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9476 bytes

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