Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 ff7965e0647ca1b9…

MALICIOUS

Office (OLE)

78.5 KB Created: 2017-10-09 20:08:00 Authoring application: Microsoft Office Word First seen: 2017-10-28
MD5: 7912fc81a6d3c404941f8f3743e06b60 SHA-1: a0b8bec4416890f3ffe06417c79101ca812d27fd SHA-256: ff7965e0647ca1b9a2802d8f3d55d4b9d0de1b29f37fa7376ed75d0dd20abea9
130 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is detected as Win.Trojan.Emotet-6397178-0 by ClamAV. Static analysis revealed a legacy WordBasic AutoClose macro that references PowerShell, suggesting it's designed to download and execute a second-stage payload. The presence of a VBA project and the specific ClamAV detection strongly point towards the Emotet family.

Heuristics 5

  • ClamAV: Win.Trojan.Emotet-6397178-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Emotet-6397178-0
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • 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 In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 320 bytes
SHA-256: 5b4fcb19ec8f68de6cdf1b8b73de94161534ed645b39fb8f9f6a28e31f908652
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisDocument"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True

Attribute VB_Name = "Module1"

Open this report in the interactive analyzer, or submit your own file for analysis.