Analysis

  • max time kernel
    560s
  • max time network
    562s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 11:00

General

  • Target

    Probiv.exe

  • Size

    67KB

  • MD5

    613288a7e55550e864d86191542d9177

  • SHA1

    22262078f189408184206777a67a64b9fb70e99a

  • SHA256

    a9e49fdb9c43601c9e860d851f4d969550aaf43af8b84d178ea88257e8065a12

  • SHA512

    22dd638b808a34fa64d354135407e8ac952cd96ce37ede335b055d590dcd360b63462233c159c1859e17707bf413f507494cc3656555fc606de195976dd47006

  • SSDEEP

    1536:SmsKyHPhRopHbWTakbOzUyZX6I4wEON2GE:1OvbOoyb4wEONa

Malware Config

Extracted

Family

xworm

C2

registered-martial.gl.at.ply.gg:62460

Attributes
  • Install_directory

    %Temp%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 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.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
    "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2468
    • 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\Probiv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Probiv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2288
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2896
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2472
    • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
      "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1804
    • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
      "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3020
    • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
      "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      7KB

      MD5

      52056c8b41d68c10938a5a4af22aee10

      SHA1

      8e0d5822c8377224c33447d94a40bd95a7c0e732

      SHA256

      4bdfec0606191fa9e15b4edab2aae85013376c8abb5adb20e9216397e2e0689d

      SHA512

      6c071c727b4b3cbb4b8d26ed92eae198b70980c5de01c1661f4511d73daa96cbbe86ea65f773b23f7f4c61aab6f2b56f3b053b3aca7378e70e834bc0a69fe89d

    • memory/2468-0-0x000007FEF5893000-0x000007FEF5894000-memory.dmp

      Filesize

      4KB

    • memory/2468-1-0x00000000008B0000-0x00000000008C8000-memory.dmp

      Filesize

      96KB

    • memory/2468-2-0x000007FEF5890000-0x000007FEF627C000-memory.dmp

      Filesize

      9.9MB

    • memory/2468-28-0x000007FEF5893000-0x000007FEF5894000-memory.dmp

      Filesize

      4KB

    • memory/2468-29-0x000007FEF5890000-0x000007FEF627C000-memory.dmp

      Filesize

      9.9MB

    • memory/2596-7-0x0000000002870000-0x00000000028F0000-memory.dmp

      Filesize

      512KB

    • memory/2596-8-0x000000001B4B0000-0x000000001B792000-memory.dmp

      Filesize

      2.9MB

    • memory/2596-9-0x0000000002860000-0x0000000002868000-memory.dmp

      Filesize

      32KB

    • memory/2652-15-0x000000001B690000-0x000000001B972000-memory.dmp

      Filesize

      2.9MB

    • memory/2652-16-0x0000000002960000-0x0000000002968000-memory.dmp

      Filesize

      32KB