Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/09/2026, 23:26

General

  • Target
    2026-09-03_c2ac2ab1fcf645b4878937c1c85a30ae_cobalt-strike_icedid_luca-stealer_njrat_satacom_stealc_vidar.exe
  • Size 1.2MB
  • Sample260903-3fbphsgr3z
  • SHA256 3fb6c148715dfe0074a57e23bab5cfc47294f38a69da78cb46920a72548740e9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 134.122.155.220:443

  • 134.122.155.220:80

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

  • Detects ValleyRAT payload 3 IoCs
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects executables embedding registry key / value combination indicative of disabling Windows Defen 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-03_c2ac2ab1fcf645b4878937c1c85a30ae_cobalt-strike_icedid_luca-stealer_njrat_satacom_stealc_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-03_c2ac2ab1fcf645b4878937c1c85a30ae_cobalt-strike_icedid_luca-stealer_njrat_satacom_stealc_vidar.exe"
    1⤵
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\explorer.exe
      explorer.exe shell:::{95838E7B-77B5-40A2-ACDD-698A01171590}
      2⤵
        PID:4208
    • C:\Users\Admin\AppData\Local\Temp\~tmp_76261.tmp
      C:\Users\Admin\AppData\Local\Temp\~tmp_76261.tmp
      1⤵
      • Executes dropped EXE
      PID:4880
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4800
      • C:\ProgramData\SvcHostLoader\SvcHostLoader.exe
        "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe" -onlyctrl
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\system32\cmd.exe
          cmd.exe /c "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl"
          3⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:3392
          • C:\ProgramData\SvcHostLoader\SvcHostLoader.exe
            C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            PID:5096
    • C:\ProgramData\SvcHostLoader\SvcHostLoader.exe
      "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe" -onlyctrl
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3540
        • C:\ProgramData\SvcHostLoader\SvcHostLoader.exe
          C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          PID:2784

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          SvcHostLoader.exe

          • Path C:\ProgramData\SvcHostLoader\SvcHostLoader.exe
          • Size 1.2MB
          • SHA256 3fb6c148715dfe0074a57e23bab5cfc47294f38a69da78cb46920a72548740e9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ~tmp_76261.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\~tmp_76261.tmp
          • Size 47KB
          • SHA256 f25673e1c11c7e32a51e79010aefc8090e91e5235ceaa250cc13d6fccdb6d66f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2784-17-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/2784-9-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/2784-11-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/2784-10-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/2784-12-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/2784-13-0x00000292A6880000-0x00000292A68D0000-memory.dmp

          memory/2784-15-0x00000292A6880000-0x00000292A68D0000-memory.dmp

          memory/2784-14-0x00000292A6880000-0x00000292A68D0000-memory.dmp

          memory/2784-16-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-23-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-31-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-19-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-21-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-22-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-5-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-25-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-26-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-27-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-29-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-30-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-18-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-33-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-34-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-35-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-37-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-39-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-38-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-41-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-42-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-43-0x0000000140000000-0x000000014002A000-memory.dmp

          memory/5096-45-0x0000000140000000-0x000000014002A000-memory.dmp