Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/09/2026, 00:31

General

  • Target
    Adobe%20Browser%20Extension.msi
  • Size 2.9MB
  • Sample260918-at32pssfph
  • SHA256 448a9068e6888fee0ad6c62a15a34077e0257406601907108149a379045ce933
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: AteraAgent

    AteraAgent is a remote monitoring and management tool.

  • Detects AteraAgent 1 IoCs
  • Badlisted process makes network request 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 31 IoCs
  • Checks installed software on the system 1 TTPs

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

  • 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
  • Drops file in Program Files directory 23 IoCs
  • Drops file in Windows directory 39 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 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.

  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 22 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 13 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\Adobe%20Browser%20Extension.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:900
  • 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
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2828
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8D0D6CA7DDF6FD880D283D0E360B00D8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5692
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIB3E5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240760125 2 AlphaControlAgentInstallation!AlphaControlAgentInstallation.CustomActions.GenerateAgentId
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:6008
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIB906.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761171 6 AlphaControlAgentInstallation!AlphaControlAgentInstallation.CustomActions.ReportMsiStart
          3⤵
          • Badlisted process makes network request
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:5812
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIC200.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763406 11 AlphaControlAgentInstallation!AlphaControlAgentInstallation.CustomActions.ShouldContinueInstallation
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:5152
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSID37A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240767921 33 AlphaControlAgentInstallation!AlphaControlAgentInstallation.CustomActions.ReportMsiEnd
          3⤵
          • Badlisted process makes network request
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:5340
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 699AE1C461E4DF74F0F79BC52BC88AD0 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4184
        • C:\Windows\SysWOW64\NET.exe
          "NET" STOP AteraAgent
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1680
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 STOP AteraAgent
            4⤵
            • System Location Discovery: System Language Discovery
            PID:5808
        • C:\Windows\SysWOW64\TaskKill.exe
          "TaskKill.exe" /f /im AteraAgent.exe
          3⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2888
      • C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe
        "C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe" /i /IntegratorLogin="[email protected]" /CompanyId="1" /IntegratorLoginUI="" /CompanyIdUI="" /FolderId="" /AccountId="001Q300000LE3mjIAD" /AgentId="6458bc61-1442-4da3-9fa5-3a3c804f1b33"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Modifies data under HKEY_USERS
        PID:1944
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:476
    • C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe
      "C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe"
      1⤵
      • Executes dropped EXE
      PID:5492
    • C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe
      "C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe"
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\Windows\System32\sc.exe
        "C:\Windows\System32\sc.exe" failure AteraAgent reset= 600 actions= restart/25000
        2⤵
        • Launches sc.exe
        PID:4460
      • C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\AgentPackageAgentInformation.exe
        "C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\AgentPackageAgentInformation.exe" 6458bc61-1442-4da3-9fa5-3a3c804f1b33 "7890bf9b-54ca-440e-bbed-5d24909b4dee" agent-api.atera.com/Production 443 or8ixLi90Mf "minimalIdentification" 001Q300000LE3mjIAD
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:5320

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59b165.rbs

          • Path C:\Config.Msi\e59b165.rbs
          • Size 8KB
          • SHA256 8f9b81bf7fcfc5509b3c38761e3532e11724906662d89c3eec1cd94f01dfb5de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AteraAgent.InstallLog

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.InstallLog
          • Size 305B
          • SHA256 8e88d3edb3da0f6dfe4dc7716ab64256fab189429a6690b129d6789f7eeca49b
          • MD5 SHA1 SHA512 TLSH

          AteraAgent.InstallLog

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.InstallLog
          • Size 753B
          • SHA256 6fbf5845a6738e2dc2aa67dd5f78da2c8f8cb41d866bbba10e5336787c731b25
          • MD5 SHA1 SHA512 TLSH

          AteraAgent.exe

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe
          • Size 142KB
          • SHA256 a96a0ba7998a6956c8073b6eff9306398cc03fb9866e4cabf0810a69bb2a43b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AteraAgent.exe.config

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\AteraAgent.exe.config
          • Size 1KB
          • SHA256 e505b08308622ad12d98e1c7a07e5dc619a2a00bcd4a5cbe04fe8b078bcf94a2
          • MD5 SHA1 SHA512 TLSH

          ICSharpCode.SharpZipLib.dll

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\ICSharpCode.SharpZipLib.dll
          • Size 210KB
          • SHA256 2b5b7a2afbc88a4f674e1d7836119b57e65fae6863f4be6832c38e08341f2d68
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Newtonsoft.Json.dll

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Newtonsoft.Json.dll
          • Size 693KB
          • SHA256 2a7a84768cc09a15362878b270371daad9872caacbbeebe7f30c4a7ed6c03ca7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AgentPackageAgentInformation.INI

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\AgentPackageAgentInformation.INI
          • Size 12B
          • SHA256 41ce69e68ed00533cf7716ed4cd4601f3efd7461de0457687279d4d5d5168ad8
          • MD5 SHA1 SHA512

          AgentPackageAgentInformation.exe

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\AgentPackageAgentInformation.exe
          • Size 284KB
          • SHA256 a173c0a56bcda8374579ef5ae1e1e73f25cf5e2a950a9b57f9ab7dc4f3f0fb33
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AgentPackageAgentInformation.exe.config

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\AgentPackageAgentInformation.exe.config
          • Size 1021B
          • SHA256 f1461b023e02fac832979ebf9bfa59ee7043885c90fc8ee6f8077f07a1cb7097
          • MD5 SHA1 SHA512 TLSH

          Atera.AgentPackage.Common.dll

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\Atera.AgentPackage.Common.dll
          • Size 111KB
          • SHA256 dd3aab641c09602dec10fe6383763760002cab2e84958f6e9ea1ca347fdafb32
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Newtonsoft.Json.dll

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Packages\AgentPackageAgentInformation\Newtonsoft.Json.dll
          • Size 693KB
          • SHA256 b7958da07e082f55a0580bb51690ab8a2dc9d6839c9daa74e7ea6dcf004aaf93
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Pubnub.dll

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\Pubnub.dll
          • Size 588KB
          • SHA256 13774cc16c1254752ea801538bfb9a9d1328f8b4dd3ff41760ac492a245fbb15
          • MD5 SHA1 SHA512 SSDEEP TLSH

          log.txt

          • Path C:\Program Files (x86)\ATERA Networks\AteraAgent\log.txt
          • Size 209B
          • SHA256 b545211bf01411bb8ba04681906f8b0ea6a175b8f040a3290b704f741dad24d2
          • MD5 SHA1 SHA512 TLSH

          MSIB3E5.tmp

          • Path C:\Windows\Installer\MSIB3E5.tmp
          • Size 509KB
          • SHA256 87c97269e2b68898be87b884cd6a21880e6f15336b1194713e12a2db45f1dccf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AlphaControlAgentInstallation.dll

          • Path C:\Windows\Installer\MSIB3E5.tmp-\AlphaControlAgentInstallation.dll
          • Size 25KB
          • SHA256 e44a6582cd3f84f4255d3c230e0a2c284e0cffa0ca5e62e4d749e089555494c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Windows\Installer\MSIB3E5.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 179KB
          • SHA256 cf06d4ed4a8baf88c82d6c9ae0efc81c469de6da8788ab35f373b350a4b4cdca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Windows\Installer\MSIB906.tmp-\CustomAction.config
          • Size 1KB
          • SHA256 e4ff538599c2d8e898d7f90ccf74081192d5afa8040e6b6c180f3aa0f46ad2c5
          • MD5 SHA1 SHA512 TLSH

          Newtonsoft.Json.dll

          • Path C:\Windows\Installer\MSIB906.tmp-\Newtonsoft.Json.dll
          • Size 695KB
          • SHA256 c5c83bbc1741be6ff4c490c0aee34c162945423ec577c646538b2d21ce13199e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC53E.tmp

          • Path C:\Windows\Installer\MSIC53E.tmp
          • Size 211KB
          • SHA256 c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59b164.msi

          • Path C:\Windows\Installer\e59b164.msi
          • Size 2.9MB
          • SHA256 448a9068e6888fee0ad6c62a15a34077e0257406601907108149a379045ce933
          • MD5 SHA1 SHA512 SSDEEP TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 37bcacaeeaed98dd7eaeac67e7a3f49542898123429bf4c53429b513938c3c10
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 0d280e361804ec358d07ec2839eed59eda704d87372720244ce8cf7565c7373c
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 9aa0c1400081083c6efdc59b3741739f7fbc24bed46e37546f1a931ff345e568
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6626e537-7a35-4f90-a230-20780dc324a4}_OnDiskSnapshotProp

          • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{6626e537-7a35-4f90-a230-20780dc324a4}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 2774428eff8c825117c4deebcfd06a7a440fb8086f8821c1efe745f6d723ab60
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1944-109-0x0000026B9F6B0000-0x0000026B9F6D8000-memory.dmp

          memory/1944-126-0x0000026BA14B0000-0x0000026BA14EC000-memory.dmp

          memory/1944-125-0x0000026BA1440000-0x0000026BA1452000-memory.dmp

          memory/1944-121-0x0000026BB9D70000-0x0000026BB9E08000-memory.dmp

          memory/4840-198-0x000002387D7E0000-0x000002387D818000-memory.dmp

          memory/4840-162-0x000002387D2D0000-0x000002387D2F2000-memory.dmp

          memory/4840-159-0x000002387D360000-0x000002387D412000-memory.dmp

          memory/5152-78-0x00000000034B0000-0x0000000003516000-memory.dmp

          memory/5320-234-0x0000026C1BDA0000-0x0000026C1BDC0000-memory.dmp

          memory/5320-231-0x0000026C1B740000-0x0000026C1B78A000-memory.dmp

          memory/5320-236-0x0000026C34B50000-0x0000026C34C02000-memory.dmp

          memory/5812-54-0x0000000005260000-0x00000000055BB000-memory.dmp

          memory/5812-53-0x0000000005110000-0x0000000005132000-memory.dmp

          memory/5812-50-0x00000000051A0000-0x0000000005252000-memory.dmp

          memory/6008-26-0x0000000003410000-0x000000000341C000-memory.dmp

          memory/6008-22-0x00000000033D0000-0x00000000033FE000-memory.dmp