Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c86715ec898705b4…

MALICIOUS

Office (OLE) / .DOCX

131.2 KB Created: 2020-09-30 05:26:00 Authoring application: Microsoft Office Word
MD5: a595bba0ad15f2f3bff5da6819d0781b SHA-1: c54714305b78d5649a147ca8ae0c1dfc32e18eb0 SHA-256: c86715ec898705b4f96afa145de31fef0c732dd66d0e2707407cb453731f9fac
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected by ClamAV as Doc.Downloader.Emotet-9769541-0. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. This suggests the macro is designed to download and execute a second-stage payload. The obfuscated document body content is not directly indicative of the attack's purpose.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769541-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769541-0
  • 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
b2b495189d2eb2b89dce9719098105d933c1125fa9413aec5a7ff49e851b8844
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10579 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 28 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.