Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 06:14

General

  • Target
    Approved%20Document%23D53LU.msi
  • Size 6.8MB
  • Sample261030-gzedvsdd63
  • SHA256 3be3e7a45994dffd41af96f3b8852674272e6dbaaca2dcd0b84296e136a9c6c5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in System32 directory 13 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in Windows directory 64 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 8 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 64 IoCs
  • Modifies registry class 46 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Approved%20Document%23D53LU.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3420
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • 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:3700
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3012
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DDE7FD90F49F19A623CE558A1E1D8E06
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1592
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 49CCB0BA067B7102078EA34D1542A4F3 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5032
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 811BE57BB64AA0BE7D88028C5A70918C E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5892
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:404
    • C:\Windows\Action1\action1_agent.exe
      C:\Windows\Action1\action1_agent.exe service
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2168
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\sysnative\WindowsPowerShell\v1.0\powershell.exe -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -Command "$ExecutionContext.SessionState.LanguageMode"
        2⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1972
      • C:\Windows\SysWOW64\msiexec.exe
        C:\Windows\system32\msiexec.exe /I "C:\Windows\Action1\action1_agent.msi" /quiet /qn /norestart /lv* "C:\Windows\Action1\logs\agent_install_1793340926.log" ALLOWRESTRICTEDVERSIONS=1
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1928
    • C:\Windows\Action1\action1_agent.exe
      C:\Windows\Action1\action1_agent.exe service
      1⤵
      • Drops file in Windows directory
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\sysnative\WindowsPowerShell\v1.0\powershell.exe -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -Command "$ExecutionContext.SessionState.LanguageMode"
        2⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:4160
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\sysnative\WindowsPowerShell\v1.0\powershell.exe" -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -Command -
        2⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1408
        • C:\Windows\Action1\action1_agent.exe
          "C:\Windows\Action1\action1_agent.exe" loggedonuser
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4400
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\sysnative\WindowsPowerShell\v1.0\powershell.exe" -NoLogo -NonInteractive -NoProfile -ExecutionPolicy Bypass -Command -
        2⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:3420

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a0dcd.rbs

          • Path C:\Config.Msi\e5a0dcd.rbs
          • Size 240KB
          • SHA256 e0f52a9f52dc9521cbf5d2423919e1207d91fdb733d24a408ac227bd14f82bd9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a0dce.rbs

          • Path C:\Config.Msi\e5a0dce.rbs
          • Size 7KB
          • SHA256 4a5f1c217752108ff101eaf6ecef13f952dbd7420b22b69ecf014d8fd4f88975
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a0dd3.rbs

          • Path C:\Config.Msi\e5a0dd3.rbs
          • Size 246KB
          • SHA256 44eac1954758978de18894ec291abc5df35847c1dfe8670831c0778edcd2eaec
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a0dd8.rbs

          • Path C:\Config.Msi\e5a0dd8.rbs
          • Size 8KB
          • SHA256 454634f3e514400095e63be85d3e8ec52e5078bc948e46c14ff8214036456606
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a0ddb.rbf

          • Path C:\Config.Msi\e5a0ddb.rbf
          • Size 3B
          • SHA256 13bf7b3039c63bf5a50491fa3cfd8eb4e699d1ba1436315aef9cbe5711530354
          • MD5 SHA1 SHA512

          e5a0ddc.rbs

          • Path C:\Config.Msi\e5a0ddc.rbs
          • Size 1KB
          • SHA256 ad1bbf795350181cd5553a7345091cc147b6ec8234d5b0b20689e6f77bfbe40f
          • MD5 SHA1 SHA512 TLSH

          e5a0ddd.rbs

          • Path C:\Config.Msi\e5a0ddd.rbs
          • Size 7KB
          • SHA256 41e06ad5c2cf590b8ce73ae85c3b3e4831e250180198e57c35cf10d1a8b23a11
          • MD5 SHA1 SHA512 SSDEEP TLSH

          7z.dll

          • Path C:\Windows\Action1\7z.dll
          • Size 1.3MB
          • SHA256 87aae6d4af8f028f080147e4cb0c42fff76c46fe8813c8b5dffd32d2bc566afd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          action1_agent.exe

          • Path C:\Windows\Action1\action1_agent.exe
          • Size 8.9MB
          • SHA256 bdaf0c46119913e3636524f2a353f3fdaef30d6bf3efb168a20edd6dd10809bd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          action1_agent.exe

          • Path C:\Windows\Action1\action1_agent.exe
          • Size 8.9MB
          • SHA256 941695d20d82dd5d62f74b0111feb23720637202f6c797df2a02e2cb6cb6e8e3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          action1_agent.exe.connection

          • Path C:\Windows\Action1\action1_agent.exe.connection
          • Size 2B
          • SHA256 565339bc4d33d72817b583024112eb7f5cdf3e5eef0252d6ec1b9c9a94e12bb3
          • MD5 SHA1 SHA512

          action1_agent.exe.update_state

          • Path C:\Windows\Action1\action1_agent.exe.update_state
          • Size 1B
          • SHA256 7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451
          • MD5 SHA1 SHA512

          action1_agent.msi

          • Path C:\Windows\Action1\action1_agent.msi
          • Size 6.8MB
          • SHA256 d9a41402fbadd6fcc55b91aa4e635812feb5ce2da4d35a3af23ffe9e3fd88189
          • MD5 SHA1 SHA512 SSDEEP TLSH

          action1_remote.exe

          • Path C:\Windows\Action1\action1_remote.exe
          • Size 1.5MB
          • SHA256 eb77e754e3b6c4d93fa4697bcdf02871be7b30b69ca0855a5df79f9404fdb3e8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          advanced_settings.json

          • Path C:\Windows\Action1\advanced_settings.json
          • Size 54KB
          • SHA256 3040b827165bc37144baf5222f74312228fcae1cdbf96606085a7c859ac2bf14
          • MD5 SHA1 SHA512 SSDEEP TLSH

          agent_downgrade.version_pair

          • Path C:\Windows\Action1\agent_downgrade.version_pair
          • Size 71B
          • SHA256 570839a03e2816086778a40b9201b5d2fd36b3b01f44d34578d6bdea7a1f4ff8
          • MD5 SHA1 SHA512 TLSH

          first_install

          • Path C:\Windows\Action1\first_install
          • Size 50B
          • SHA256 58904f04cf5bd7d3a302ab80b321d14ff776db9971db23e3af81c1b60501a067
          • MD5 SHA1 SHA512 TLSH

          agent_install_1793340926.log

          • Path C:\Windows\Action1\logs\agent_install_1793340926.log
          • Size 1KB
          • SHA256 3911f2fbb9ff8726c5830fe5424aef4f0198d41a6cdf17e81c9c2ee0fdec803a
          • MD5 SHA1 SHA512 TLSH

          sas.dll

          • Path C:\Windows\Action1\sas.dll
          • Size 8KB
          • SHA256 996b01e15f85e165899630721a141b178a9c372b6e878012180ec9e9d4e7bd06
          • MD5 SHA1 SHA512 SSDEEP TLSH

          what_is_this.txt

          • Path C:\Windows\Action1\what_is_this.txt
          • Size 1KB
          • SHA256 735dd20b8dcd387bf04a6deb30ad2b26b97402fc12287edacaef6d998f093b87
          • MD5 SHA1 SHA512 TLSH

          MSI12AE.tmp

          • Path C:\Windows\Installer\MSI12AE.tmp
          • Size 385KB
          • SHA256 626a4e7060bd9b789795804e8b6497743c11d61c7353fb68798dd0bc76152cae
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI18FA.tmp

          • Path C:\Windows\Installer\MSI18FA.tmp
          • Size 234KB
          • SHA256 78860e15e474cc2af7ad6e499a8971b6b8197afb8e49a1b9eaaa392e4378f3a5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI501B.tmp

          • Path C:\Windows\Installer\MSI501B.tmp
          • Size 387KB
          • SHA256 ca5f0275e70ec5ba65b74c3da74f489018bc143c4c405fd8bbc6519eadac2a22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a0dcc.msi

          • Path C:\Windows\Installer\e5a0dcc.msi
          • Size 6.8MB
          • SHA256 3be3e7a45994dffd41af96f3b8852674272e6dbaaca2dcd0b84296e136a9c6c5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ProductIcon

          • Path C:\Windows\Installer\{E6D8B066-2E74-458F-9111-24857C1C627A}\ProductIcon
          • Size 32KB
          • SHA256 7a214ccfe309e4c0c83f40d9b7c92e3d41206db734401e7227ef10b38064ca9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_koor34vy.1kh.psm1

          • Path C:\Windows\SystemTemp\__PSScriptPolicyTest_koor34vy.1kh.psm1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 64B
          • SHA256 b3a033bc9967f667e05c806a479d9fd9632c228ffaa4e9626a9ecb9147cc127d
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 64B
          • SHA256 a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 134a0b49437178e09a8a43a1a071de16b10289a6b19fc996a15d5cc2f87b9d37
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 168eaa74c72030b36ef4a58d446a08eec716c2f0481a3a469202871eb3f60c83
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {20a2f542-412a-4991-9c2a-3cfc6bb758aa}_OnDiskSnapshotProp

          • Path \??\Volume{0a1bed32-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{20a2f542-412a-4991-9c2a-3cfc6bb758aa}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8a70ebb28105b089cf064b15e6fb0bb5cca0f9ebc1af606578d48de4e3906d71
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1972-33-0x00000200C0600000-0x00000200C0622000-memory.dmp