Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 700dfcd7a2a3ee3a…

MALICIOUS

Office (OLE) / .DOCX

151.2 KB Created: 2020-09-22 07:23:00 Authoring application: Microsoft Office Word
MD5: 0a71b48795b59ac6dc102254db03a32c SHA-1: ec0dd50a055b3b38ae0ce0eba62efba899cb5139 SHA-256: 700dfcd7a2a3ee3abdd98fa4a8497bb24736753955fe23c4a0714ae7fbe2ca41
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically triggering on Document_open. Heuristics indicate the use of CreateObject and GetObject, common for executing malicious code. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9765070-0', strongly suggesting the Emotet family. The VBA script, though obfuscated, is designed to execute code upon opening the document, likely to download and run a second-stage payload.

Heuristics 7

  • 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.
  • 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

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