Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 3ee09f00664465a4…

MALICIOUS

Office (OLE)

135.5 KB Created: 2020-10-15 07:11:00 Authoring application: Microsoft Office Word
MD5: 352e5dbf6ed735f3fac7abb4a29c7322 SHA-1: 5c3b5e5ee9e0adba350d939a470559b8ccf54a56 SHA-256: 3ee09f00664465a413c62a8dc8fda130477e052947866a55779f7fd704f89f1a
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9778182-0', strongly suggesting the Emotet family. The presence of a Document_Open macro that uses CreateObject and p-code execution indicates the macro is designed to automatically run upon opening the document. This macro likely downloads and executes a second-stage payload, a common Emotet delivery technique. No document body text was available for analysis, but the heuristic firings are sufficient for this assessment.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
05186e239e76e1c73e5319ce1be1478c63b01a327801cd1193ca1ac174bd447f
vba-macro oletools.olevba.extract_macros (decoded VBA source) 11222 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.