Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2022, 23:36

General

  • Target

    9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb.exe

  • Size

    677KB

  • MD5

    2a73e0d44381ae381096e16fe65bf261

  • SHA1

    c3d74e27272eebdaab0ff7e9da176a6038803809

  • SHA256

    9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb

  • SHA512

    646ea95c2b12e1b9030c0bcdf967380e8eb3c3b40b7174f8a3d4b84171b609fba1339610f21e01b14a1062d52a6fafbd499924dbdc082df3cfef2d8ae9c9b1c0

  • SSDEEP

    12288:PaCS+UAgUwBx8QshoIjrmeJNZ+k/EwjOMeEB0LMDPfLFigRg+KbSB0Df7:CCS+UPUwBmogDJNwkJjOMe2PjRg7SuD

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb.exe
    "C:\Users\Admin\AppData\Local\Temp\9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb.exe"
    1⤵
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4848
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "ASUS Live Update" /t REG_SZ /d "C:\ProgramData\SixEngine.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "ASUS Live Update" /t REG_SZ /d "C:\ProgramData\SixEngine.exe"
        3⤵
        • Adds Run key to start application
        PID:64
    • C:\ProgramData\SixEngine.exe
      C:\ProgramData\SixEngine.exe
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Maps connected drives based on registry
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\ProgramData\SixEngine.exe
        "C:\ProgramData\SixEngine.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1756

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\ProgramData\SixEngine.exe

          Filesize

          677KB

          MD5

          2a73e0d44381ae381096e16fe65bf261

          SHA1

          c3d74e27272eebdaab0ff7e9da176a6038803809

          SHA256

          9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb

          SHA512

          646ea95c2b12e1b9030c0bcdf967380e8eb3c3b40b7174f8a3d4b84171b609fba1339610f21e01b14a1062d52a6fafbd499924dbdc082df3cfef2d8ae9c9b1c0

        • C:\ProgramData\SixEngine.exe

          Filesize

          677KB

          MD5

          2a73e0d44381ae381096e16fe65bf261

          SHA1

          c3d74e27272eebdaab0ff7e9da176a6038803809

          SHA256

          9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb

          SHA512

          646ea95c2b12e1b9030c0bcdf967380e8eb3c3b40b7174f8a3d4b84171b609fba1339610f21e01b14a1062d52a6fafbd499924dbdc082df3cfef2d8ae9c9b1c0

        • C:\ProgramData\SixEngine.exe

          Filesize

          677KB

          MD5

          2a73e0d44381ae381096e16fe65bf261

          SHA1

          c3d74e27272eebdaab0ff7e9da176a6038803809

          SHA256

          9d14c92b681adb658c040d08c098e8adb277ca37ec9850eff15cb1161335cfdb

          SHA512

          646ea95c2b12e1b9030c0bcdf967380e8eb3c3b40b7174f8a3d4b84171b609fba1339610f21e01b14a1062d52a6fafbd499924dbdc082df3cfef2d8ae9c9b1c0

        • memory/1756-144-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/1756-146-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/1788-139-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/1788-145-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/4848-132-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/4848-142-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB

        • memory/4848-133-0x00000000753A0000-0x0000000075951000-memory.dmp

          Filesize

          5.7MB