Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5397bdf1a60f506a…

MALICIOUS

Office (OLE) / .DOCX

211.7 KB Created: 2020-10-16 06:01:00 Authoring application: Microsoft Office Word
MD5: ee910f3d541646d9d064d583a6e7566b SHA-1: 65350bcea0982ec3f80e88d6782a267bb32cb163 SHA-256: 5397bdf1a60f506a9b6f31d307486199a832e7589cc56dbacf37047287f97e13
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV heuristic and high-severity OLE_VBA_PCODE_AUTOEXEC_EXEC, OLE_VBA_CREATEOBJ, and OLE_VBA_DOCOPEN firings indicate the presence of a malicious VBA macro designed to execute automatically upon opening the document. This macro is identified by ClamAV as 'Doc.Downloader.EmotetRed02224-9938637-0', strongly suggesting a downloader functionality, characteristic of the Emotet family. The document body content is heavily obfuscated and does not provide clear user-facing text, further supporting the interpretation that the primary purpose is macro execution rather than content delivery.

Heuristics 7

  • 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.
  • Suspicious extracted artifact high 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.
  • 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
3863408a8bdeee0ec9a7fd53b63559adf9564fc8373ad4e3bb83f95fe3393045		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15324 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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