Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5ede6ac6d693be37…

MALICIOUS

Office (OLE) / .DOCX

162.0 KB Created: 2020-12-29 20:50:00 Authoring application: Microsoft Office Word
MD5: a4e68fb16116f844812b751ef4c56467 SHA-1: 83eec324fd2c00bd7f1ca1c1c87f3b4583eb79d9 SHA-256: 5ede6ac6d693be37c6eccad46485cb39e33d1cd99649329d0424215f3d404cc6
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 contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro attempts to open and read from multiple local file paths, likely to retrieve parts of a payload. Although the exact download URL is obfuscated, the overall behavior indicates a downloader designed to fetch and execute a second-stage payload, consistent with Emotet's typical infection chain.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
e5f9549007a41fec3f244ce297cfb2983cfeb314035104f84c750e8267247398		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8311 bytes

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