Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12/06/2024, 13:20

General

  • Target

    401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

  • Size

    79KB

  • MD5

    f1e41321cd4394089842e5121d5cb649

  • SHA1

    96e3aff8a0eecda81e8d0b10323a1680b1136387

  • SHA256

    401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

  • SHA512

    243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3

  • SSDEEP

    1536:IU8SlJ3N8bspa09DfVtHbRZuBDXcCK68u2yOeYdXGnE1B:cSlJrDHbRZMDXUmO9Wn6B

Malware Config

Extracted

Family

xworm

C2

listing-trackbacks.gl.at.ply.gg:8848

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 5 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
    "C:\Users\Admin\AppData\Local\Temp\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2084
    • 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\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2076
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2448
    • 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\TLauncher'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2960
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'TLauncher'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TLauncher" /tr "C:\Users\Admin\AppData\Roaming\TLauncher"
      2⤵
      • Creates scheduled task(s)
      PID:2476
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D1E76FF2-2E9C-478D-8442-1B36618C40EB} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:276
    • C:\Users\Admin\AppData\Roaming\TLauncher
      C:\Users\Admin\AppData\Roaming\TLauncher
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1432
    • C:\Users\Admin\AppData\Roaming\TLauncher
      C:\Users\Admin\AppData\Roaming\TLauncher
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1056
    • C:\Users\Admin\AppData\Roaming\TLauncher
      C:\Users\Admin\AppData\Roaming\TLauncher
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:772

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

    8ecddd26cad16d55045a731fd861f104

    SHA1

    0ac14606e024ac27873139fa5162220df07c2048

    SHA256

    5e8f255af7604d2076c91b24c70656cbe44611d3a9197f9a1c43e06fd8a8e785

    SHA512

    69abf384f8e035ea06cb3de33e428d30505f617b26cbed44665195848741052580fcae679aa2d0c0ebfc3c63dfe13c0754e2c8ad87b7ea7bb8222ff96997c5be

  • C:\Users\Admin\AppData\Roaming\TLauncher

    Filesize

    79KB

    MD5

    f1e41321cd4394089842e5121d5cb649

    SHA1

    96e3aff8a0eecda81e8d0b10323a1680b1136387

    SHA256

    401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

    SHA512

    243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3

  • memory/772-40-0x00000000000F0000-0x000000000010A000-memory.dmp

    Filesize

    104KB

  • memory/1056-38-0x00000000002F0000-0x000000000030A000-memory.dmp

    Filesize

    104KB

  • memory/1432-33-0x0000000000330000-0x000000000034A000-memory.dmp

    Filesize

    104KB

  • memory/2076-7-0x0000000002E90000-0x0000000002F10000-memory.dmp

    Filesize

    512KB

  • memory/2076-8-0x000000001B680000-0x000000001B962000-memory.dmp

    Filesize

    2.9MB

  • memory/2076-9-0x0000000001D90000-0x0000000001D98000-memory.dmp

    Filesize

    32KB

  • memory/2084-34-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

    Filesize

    4KB

  • memory/2084-0-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

    Filesize

    4KB

  • memory/2084-2-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

    Filesize

    9.9MB

  • memory/2084-35-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

    Filesize

    9.9MB

  • memory/2084-1-0x0000000001360000-0x000000000137A000-memory.dmp

    Filesize

    104KB

  • memory/2448-16-0x0000000001F40000-0x0000000001F48000-memory.dmp

    Filesize

    32KB

  • memory/2448-15-0x000000001B620000-0x000000001B902000-memory.dmp

    Filesize

    2.9MB