Overview

overview

10

Static

static

10

2024-04-07...uk.exe

windows7-x64

10

2024-04-07...uk.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    16s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 20:31

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General

  • Target

    2024-04-07_aba18ddf7490e3c6bb95d8ebbc1d8fd1_ryuk.exe

  • Size

    170KB

  • MD5

    aba18ddf7490e3c6bb95d8ebbc1d8fd1

  • SHA1

    965018fae5c6e43ef8bc1c5c550201e499cb15c0

  • SHA256

    916a76052e84693bf9f65457d67a4b31f0f1db8f89cfbcdf579743b9c52a1886

  • SHA512

    f4007aa617eb9cd6001c6b3fefb60afa352806370ced4bb09921e257299cbdbc0cd551e19396786b3676395a7e08e53ba1c68b7f98ed56f8f97e5f2b7a5da1f9

  • SSDEEP

    3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpn8:2+rA/WSo1rl3ALrlHQpn8

Score
9/10
persistence

Malware Config

Signatures

  • Detects command variations typically used by ransomware 2 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2540
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:2568
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2680
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
          1⤵
            PID:3652
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:3816
            • C:\Users\Admin\AppData\Local\Temp\2024-04-07_aba18ddf7490e3c6bb95d8ebbc1d8fd1_ryuk.exe
              "C:\Users\Admin\AppData\Local\Temp\2024-04-07_aba18ddf7490e3c6bb95d8ebbc1d8fd1_ryuk.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4796
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2024-04-07_aba18ddf7490e3c6bb95d8ebbc1d8fd1_ryuk.exe" /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1056
                • C:\Windows\system32\reg.exe
                  REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2024-04-07_aba18ddf7490e3c6bb95d8ebbc1d8fd1_ryuk.exe" /f
                  3⤵
                  • Adds Run key to start application
                  PID:3388

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • memory/2540-0-0x00007FF741740000-0x00007FF741ACE000-memory.dmp

              Filesize

              3.6MB

              Download

            • memory/2540-1-0x00007FF741740000-0x00007FF741ACE000-memory.dmp

              Filesize

              3.6MB

              Download