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Analysis

  • max time kernel
    156s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 12:02

General

  • Target

    499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe

  • Size

    198KB

  • MD5

    2c8e1985e6d94736175ad40b99b5c834

  • SHA1

    ae275f822db435ade867d25c60a8edbdf0065c05

  • SHA256

    499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d

  • SHA512

    85a6de7fd3f0804541cfe1a8024c7cf1a6ab3647c2502ad253490ce8e2f5df07a06745a1f877ee3f7b8c92754c8f8fcc360a86b53deaa64b3e88f506073d69aa

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOs:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXp

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe
    "C:\Users\Admin\AppData\Local\Temp\499573f6ee88bc297a153dd1efa9860cd0a418c873b6cc3ccda469d82dea302d.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\499573~1.EXE > nul
      2⤵
        PID:3016
    • C:\Windows\Debug\mewhost.exe
      C:\Windows\Debug\mewhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:2824

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Debug\mewhost.exe

      Filesize

      198KB

      MD5

      101232aa38ab30e833f3a4793a39e591

      SHA1

      2c85135d8392e770950931dace34ef3b71b244a1

      SHA256

      863bfda02538cac5fc64023f7c2ce7f0eca12de3deea10133bada28feadbe535

      SHA512

      22efa2d9edfcb0fbec877dc306cad620cc8f94ad0c7364425bdea986e5685a33a90b12258d21a2bf85f4b3fee6ef499b83d023490e7cc4408001d360bee1063b

    • C:\Windows\debug\mewhost.exe

      Filesize

      198KB

      MD5

      101232aa38ab30e833f3a4793a39e591

      SHA1

      2c85135d8392e770950931dace34ef3b71b244a1

      SHA256

      863bfda02538cac5fc64023f7c2ce7f0eca12de3deea10133bada28feadbe535

      SHA512

      22efa2d9edfcb0fbec877dc306cad620cc8f94ad0c7364425bdea986e5685a33a90b12258d21a2bf85f4b3fee6ef499b83d023490e7cc4408001d360bee1063b