Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 76483a7b0b841294…

MALICIOUS

Office (OLE) / .DOC

185.5 KB Created: 2021-11-24 10:11:00 Authoring application: Microsoft Office Word
MD5: 71db619e976bcd2fd77e3c077deded58 SHA-1: 136b0967ed2af6b5ad4982a8ed6bee3addf6d14f SHA-256: 76483a7b0b841294d3393306ca5e26b09ff7146d7a88533a39d7e421228e2c86
162 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as Emotet by ClamAV and exhibits characteristics of a downloader. The VBA macro code, specifically within the 'dfjh9asd8yoehfosdgioshefsgois8dfg8e7goisdgfuisagfusgd' subroutine, attempts to construct and execute a command that downloads a payload from a list of hardcoded URLs. The script also attempts to establish persistence by writing to the registry.

Heuristics 5

  • ClamAV: Doc.Downloader.EmotetRedDawn11210-9912807-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRedDawn11210-9912807-0
  • Heap-spray pattern detected high SC_HEAP_SPRAY
    Repeated 0x07 bytes found
  • Reference to WinExec API high SC_STR_WINEXEC
    Reference to WinExec API
  • 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
e7b0f071ebb284c65a5c9630cb3ed746fc1c63014d254fb88606b3704aa4cf48		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21048 bytes

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