Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 4383cdc5c49128ee…

MALICIOUS

Office (OLE) / .DOC

152.4 KB Created: 2020-10-01 21:19:00 Authoring application: Microsoft Office Word
MD5: b530b1612f3c4e2da9a12bae62269934 SHA-1: 3bcbd64b8d4adc142c2b4762abc8b45ef3b136b8 SHA-256: 4383cdc5c49128eeffdfe31529c841fe2538fbaf27a5f67d6c4c654d4b577bf5
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9770127-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This suggests the macro's intent is to download and execute a second-stage payload. The obfuscated document body content does not provide further insight into the specific lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9770127-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9770127-0
  • 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
61d37cfb643bacdc5eef8e4ab52e6ff8dab8b03942e9a04199b924ce4d3381b6
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10395 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.