Overview

overview

10

Static

static

3

SchoolGcCh...n).exe

windows7-x64

SchoolGcCh...n).exe

windows10-2004-x64

Analysis

  • max time kernel
    82s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2024, 12:26

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Errors

Reason
Machine shutdown

General

  • Target
    SchoolGcChatRoom(MadeByLogan).exe
  • Size 719KB
  • Sample240527-pmn2jadb44
  • SHA256 c67516b52e22d90c2f7eaf23c1ec7dfe69c21e6de1496fb2eda6d9b424bbfa2d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

C2

  • auto-london.gl.at.ply.gg:51655

Attributes
  • Install_directory

    %Public%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Using powershell.exe command.

    execution
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 46 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 18 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\SchoolGcChatRoom(MadeByLogan).exe
    "C:\Users\Admin\AppData\Local\Temp\SchoolGcChatRoom(MadeByLogan).exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGsAcQBiACMAPgBBAGQAZAAtAFQAeQBwAGUAIAAtAEEAcwBzAGUAbQBiAGwAeQBOAGEAbQBlACAAUwB5AHMAdABlAG0ALgBXAGkAbgBkAG8AdwBzAC4ARgBvAHIAbQBzADsAPAAjAHUAZQB3ACMAPgBbAFMAeQBzAHQAZQBtAC4AVwBpAG4AZABvAHcAcwAuAEYAbwByAG0AcwAuAE0AZQBzAHMAYQBnAGUAQgBvAHgAXQA6ADoAUwBoAG8AdwAoACcASQBOAFMAVABBAEwATAAgAC4ATgBFAFQAIAA3AC4AMAAgAE8AUgAgAEgASQBHAEgARQBSACcALAAnACcALAAnAE8ASwAnACwAJwBFAHIAcgBvAHIAJwApADwAIwBoAGkAeAAjAD4A"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3892
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGgAegBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGIAeABuACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGMAZQBlACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHUAeQBlACMAPgA="
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1068
    • C:\Windows\SchoolGcChatRoom(MadeByLogan).exe
      "C:\Windows\SchoolGcChatRoom(MadeByLogan).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:3524
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\SchoolGcChatRoom(MadeByLogan).exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3404
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SchoolGcChatRoom(MadeByLogan).exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3680
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\COM Surrogate'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4928
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'COM Surrogate'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2076
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "COM Surrogate" /tr "C:\Users\Public\COM Surrogate"
        3⤵
        • Creates scheduled task(s)
        PID:2600
      • C:\Windows\SYSTEM32\shutdown.exe
        shutdown.exe /f /s /t 0
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1984
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4540
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3536 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1296
    • C:\Users\Public\COM Surrogate
      "C:\Users\Public\COM Surrogate"
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2016
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x4 /state0:0xa395a855 /state1:0x41c64e6d
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:4492

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

          StartupProfileData-NonInteractive
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 d47ca002debb365052178cfa540b6aa192bad1324cbfedd577238d5bea79d746
          • MD5 SHA1 SHA512
          Submit Download

          StartupProfileData-NonInteractive
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 b799c89998d733a2f74f1b6e03e0b586cfcaa2887ecc5448cc8eb1f4a4c384d6
          • MD5 SHA1 SHA512
          Submit Download

          StartupProfileData-NonInteractive
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 a4fe2be2c449e841f6a12d32114672b097fc1058b6f2971a03521220a0228745
          • MD5 SHA1 SHA512
          Submit Download

          StartupProfileData-NonInteractive
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 4f17fe98ecf3ea9ec9873ff0a3acdd6ca93eb17e280a01ff6cfeca4422019dec
          • MD5 SHA1 SHA512
          Submit Download

          __PSScriptPolicyTest_q4zxllwp.ule.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q4zxllwp.ule.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512
          Submit Download

          COM Surrogate.lnk
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surrogate.lnk
          • Size 996B
          • SHA256 903547cdc26717378899b1187e187d172aa7501466bc6ca516d7f73e49e39846
          • MD5 SHA1 SHA512
          Submit Download

          SchoolGcChatRoom(MadeByLogan).exe
          • Path C:\Windows\SchoolGcChatRoom(MadeByLogan).exe
          • Size 89KB
          • SHA256 4f3e2daa1ed438ed548b2956c0c217776ce561650c470cba3b4761b6e57ebbdb
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/3524-26-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3524-14-0x0000000000460000-0x000000000047C000-memory.dmp
          Download

          memory/3524-90-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3524-117-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3672-38-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3672-0-0x00007FFC3DC93000-0x00007FFC3DC95000-memory.dmp
          Download

          memory/3672-2-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3672-1-0x0000000000B60000-0x0000000000C1A000-memory.dmp
          Download

          memory/3892-23-0x0000026CFE8F0000-0x0000026CFE912000-memory.dmp
          Download

          memory/3892-42-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/3892-15-0x00007FFC3DC90000-0x00007FFC3E751000-memory.dmp
          Download

          memory/4540-100-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-110-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-109-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-108-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-107-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-106-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-105-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-104-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-99-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download

          memory/4540-98-0x000002D217C30000-0x000002D217C31000-memory.dmp
          Download