Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 10:27

General

  • Target
    SynsWaveV1.exe
  • Size 358KB
  • Sample240922-mg3lmavbpr
  • SHA256 712a0d5ea39f3325f80d76423fa07d8796bf0b75d35d69e8b32714d8836dfd50
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • expected-schema.gl.at.ply.gg:2980

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    USB.exe

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 8 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies registry class 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 23 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SynsWaveV1.exe
    "C:\Users\Admin\AppData\Local\Temp\SynsWaveV1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe
      "C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1904
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe"
        3⤵
        • Views/modifies file attributes
        PID:1500
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1256
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4080
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3396
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4944
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3056
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:3944
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2784
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:1492
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:2992
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:2508
        • C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
          "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
          2⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3356
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1324
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:4440
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\RuntimeBroker'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:3556
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RuntimeBroker'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:716
          • C:\Windows\System32\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RuntimeBroker" /tr "C:\Users\Admin\RuntimeBroker"
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:4212
        • C:\Users\Admin\AppData\Roaming\SynsWave.exe
          "C:\Users\Admin\AppData\Roaming\SynsWave.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3840
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c cls
            3⤵
              PID:212
        • C:\Users\Admin\RuntimeBroker
          C:\Users\Admin\RuntimeBroker
          1⤵
          • Executes dropped EXE
          PID:4868
        • C:\Windows\system32\taskmgr.exe
          "C:\Windows\system32\taskmgr.exe" /4
          1⤵
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:2856
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:3940
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:5024
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            PID:864
          • C:\Users\Admin\RuntimeBroker
            C:\Users\Admin\RuntimeBroker
            1⤵
            • Executes dropped EXE
            PID:368
          • C:\Windows\System32\u5btjl.exe
            "C:\Windows\System32\u5btjl.exe"
            1⤵
              PID:2520

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  RuntimeBroker.log

                  • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\RuntimeBroker.log
                  • Size 654B
                  • SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
                  • MD5 SHA1 SHA512

                  powershell.exe.log

                  • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                  • Size 2KB
                  • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 1KB
                  • SHA256 3c3f49948c1e832c86b959c32bc288ddedb500534b74df082f8967fc7f9976f7
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 944B
                  • SHA256 e324d4506308520b7ab6589424d6ea140618621a4eea6926f2d633f143ede53e
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 944B
                  • SHA256 5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 64B
                  • SHA256 3f9daee99f25633b64f3484dce77abf499c125d4072047368e933bf50d0b016b
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 944B
                  • SHA256 0673399a2f37c89d455e8658c4d30b9248bff1ea47ba40957588e2bc862976e8
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 944B
                  • SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 948B
                  • SHA256 98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba
                  • MD5 SHA1 SHA512

                  StartupProfileData-NonInteractive

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                  • Size 1KB
                  • SHA256 cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
                  • MD5 SHA1 SHA512

                  __PSScriptPolicyTest_iatzu23l.0ip.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iatzu23l.0ip.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512

                  MISHA_litvin.exe

                  • Path C:\Users\Admin\AppData\Roaming\MISHA_litvin.exe
                  • Size 229KB
                  • SHA256 a9f8c9cf4ceadfa6bc56ab230c8dfe8a7018e1123ba01039a4059b1814b757a0
                  • MD5 SHA1 SHA512 SSDEEP

                  RuntimeBroker.lnk

                  • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.lnk
                  • Size 784B
                  • SHA256 c6a4520264dcf349fbb64aa87bdbd1d8329f794e632beee1b97b825b1509216a
                  • MD5 SHA1 SHA512

                  RuntimeBroker.exe

                  • Path C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
                  • Size 94KB
                  • SHA256 116b46762acbc220ec42b00329392668bf3e24cc00a650f68013465c319cbf4d
                  • MD5 SHA1 SHA512 SSDEEP

                  SynsWave.exe

                  • Path C:\Users\Admin\AppData\Roaming\SynsWave.exe
                  • Size 25KB
                  • SHA256 348086f9bd5939a48efcc94702271c1caf92ea11f3b0385367daf9530b51cf3e
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1256-42-0x000001E8F6900000-0x000001E8F6922000-memory.dmp

                  memory/2372-101-0x00000157A2900000-0x00000157A290A000-memory.dmp

                  memory/2372-164-0x00007FFCF0570000-0x00007FFCF1031000-memory.dmp

                  memory/2372-28-0x0000015788100000-0x0000015788140000-memory.dmp

                  memory/2372-102-0x00000157A2940000-0x00000157A2952000-memory.dmp

                  memory/2372-64-0x00000157A28B0000-0x00000157A2900000-memory.dmp

                  memory/2372-63-0x00000157A2830000-0x00000157A28A6000-memory.dmp

                  memory/2372-65-0x00000157A2800000-0x00000157A281E000-memory.dmp

                  memory/2372-34-0x00007FFCF0570000-0x00007FFCF1031000-memory.dmp

                  memory/2856-182-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-183-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-178-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-172-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-173-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-174-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-184-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-179-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-180-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/2856-181-0x000001FC3E240000-0x000001FC3E241000-memory.dmp

                  memory/3356-36-0x00007FFCF0570000-0x00007FFCF1031000-memory.dmp

                  memory/3356-33-0x0000000000E80000-0x0000000000E9E000-memory.dmp

                  memory/3356-168-0x00007FFCF0570000-0x00007FFCF1031000-memory.dmp

                  memory/4016-0-0x00007FFCF0573000-0x00007FFCF0575000-memory.dmp

                  memory/4016-1-0x00000000006A0000-0x0000000000700000-memory.dmp