Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 ac3a85a2f859eac1…

MALICIOUS

Office (OLE) / .DOC

250.4 KB Created: 2020-01-14 06:36:00 Authoring application: Microsoft Office Word
MD5: 4ad01d94a0be2ee828eb8aed7af91679 SHA-1: fff6be2a21766f5eb741499e182063420560a538 SHA-256: ac3a85a2f859eac15371ec8fee39b125742f9d469c7e1ba728fac31f05abd1c7
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Dropper.Emotet-7535874-0', strongly suggesting it belongs to the Emotet family. High-severity heuristics indicate the presence of a 'Document_Open' VBA macro that uses 'GetObject' for execution. This macro is likely designed to download and execute a secondary payload, a common Emotet delivery technique. No document body text was available for analysis, but the macro execution and ClamAV signature are sufficient for this assessment.

Heuristics 7

  • ClamAV: Doc.Dropper.Emotet-7535874-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Emotet-7535874-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
e6a9211804efa2f55a6aa40f7ecf6c5249833025bdb8c16fd080b3c8b034efd4
vba-macro oletools.olevba.extract_macros (decoded VBA source) 11140 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 17 Chr/ChrW string-construction calls.