Overview

overview

10

Static

static

10

2024-02-17...uk.exe

windows7-x64

10

2024-02-17...uk.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    6s
  • max time network
    19s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-02-2024 14:36

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe

  • Size

    170KB

  • MD5

    fba034cb2ee768fb4ff42cb71464980b

  • SHA1

    7d7746b8c124621994c4d1a448234c005fa860df

  • SHA256

    a032bc2be51f6a445d671a04d5fd081efb4514105f97545b3222d39666aa787e

  • SHA512

    d6b8556191e009e1d279e11a90296eafee0609238867b7a2ffdb180a448e0d81e447c0c03498f35a067da03a97a5c07337e1c333a57e116f64b4b1d8d1e1c694

  • SSDEEP

    3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpnA:2+rA/WSo1rl3ALrlHQpnA

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\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    1⤵
      PID:3744
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
      1⤵
        PID:3568
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:3140
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2196
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:688
            • C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe
              "C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3892
              • 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\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe" /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:3432
                • 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\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe" /f
                  3⤵
                  • Adds Run key to start application
                  PID:2676

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/688-0-0x00007FF7814C0000-0x00007FF78184E000-memory.dmp

              Filesize

              3.6MB

              Download

            • memory/688-1-0x00007FF7814C0000-0x00007FF78184E000-memory.dmp

              Filesize

              3.6MB

              Download