Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/08/2024, 19:03

General

  • Target
    d242df7f2b38186e3ff903b28119c09883df033ba2519e9b5f19eb0652f78975.exe
  • Size 313KB
  • Sample240818-xqftbssdnq
  • SHA256 d242df7f2b38186e3ff903b28119c09883df033ba2519e9b5f19eb0652f78975
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.1

C2
  • 119.59.98.116:7812

Mutex
  • JBMeOx2rIgGrdV0y

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Defender security.exe

  • telegram

    https://api.telegram.org/bot6110313252:AAE6fFOzBefHnbenT-1DwxI9EBeZQTxbYGk/sendMessage?chat_id=6291749148

aes.plain

Extracted

Family
  • asyncrat

Botnet
  • Default

C2
  • 127.0.0.1:6606

  • 127.0.0.1:7707

  • 127.0.0.1:8808

  • https://api.telegram.org/bot6110313252:AAE6fFOzBefHnbenT-1DwxI9EBeZQTxbYGk/sendMessage?chat_id=6291749148

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • asyncrat

Version
  • Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet
  • Default

C2
  • 119.59.98.116:7812

Mutex
  • WindowsDefendersecurityService

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Defender Security Service.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Detect Xworm Payload 2 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 2 IoCs
  • VenomRAT 2 IoCs

    Detects VenomRAT.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Async RAT payload 2 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 6 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
  • Drops desktop.ini file(s) 8 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.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 40 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\d242df7f2b38186e3ff903b28119c09883df033ba2519e9b5f19eb0652f78975.exe
    "C:\Users\Admin\AppData\Local\Temp\d242df7f2b38186e3ff903b28119c09883df033ba2519e9b5f19eb0652f78975.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:64
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:4524
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4224
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:1848
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:384
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4968
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1640
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:4720
    • C:\Users\Admin\AppData\Roaming\Windows Defender security.exe
      "C:\Users\Admin\AppData\Roaming\Windows Defender security.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender security" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender security.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1156
    • C:\Users\Admin\AppData\Roaming\Windows Security Service Host.exe
      "C:\Users\Admin\AppData\Roaming\Windows Security Service Host.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Security Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2872
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Security Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"'
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4216
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp826E.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:1552
        • C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe
          "C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2600
  • C:\Users\Admin\AppData\Roaming\Windows Defender security.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender security.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2952
  • C:\Users\Admin\AppData\Roaming\Windows Defender security.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender security.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3620

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        msgid.dat

        • Path C:\Users\Admin\AppData\Local\2d36cc9d40bd48127a0b54f637b5251f\msgid.dat
        • Size 1B
        • SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
        • MD5 SHA1 SHA512

        Windows Defender security.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows Defender security.exe.log
        • Size 654B
        • SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
        • MD5 SHA1 SHA512

        tmp826E.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp826E.tmp.bat
        • Size 178B
        • SHA256 5191f9cdb90fecfae46f3013dbd2ba640baf6666ff3f28599b7e134255ca43c0
        • MD5 SHA1 SHA512

        Process.txt

        • Path C:\Users\Admin\AppData\Local\f54a5d82f4a8ee2d4950876b1390c98e\Admin@ZEUYFSYD_en-US\System\Process.txt
        • Size 4KB
        • SHA256 4ac621559dd01802bb7d37e5dbf44a5202b36b17bb6e01db3ce5c8e4610dc70c
        • MD5 SHA1 SHA512 SSDEEP

        DataLogs.conf

        • Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
        • Size 8B
        • SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
        • MD5 SHA1 SHA512

        Windows Defender security.exe

        • Path C:\Users\Admin\AppData\Roaming\Windows Defender security.exe
        • Size 42KB
        • SHA256 c93c27a171d7a883f34e944d16bb47f0e949eb36181060f923e4d8df8da24298
        • MD5 SHA1 SHA512 SSDEEP

        Windows Security Service Host.exe

        • Path C:\Users\Admin\AppData\Roaming\Windows Security Service Host.exe
        • Size 74KB
        • SHA256 27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Users\Admin\AppData\Roaming\svchost.exe
        • Size 170KB
        • SHA256 5b9f1c1780a2889685343734f81db30b92b7407cc8e476d01cf4f46d37db04a9
        • MD5 SHA1 SHA512 SSDEEP

        memory/64-1-0x0000000074DF0000-0x00000000753A1000-memory.dmp

        memory/64-2-0x0000000074DF0000-0x00000000753A1000-memory.dmp

        memory/64-0-0x0000000074DF2000-0x0000000074DF3000-memory.dmp

        memory/64-41-0x0000000074DF0000-0x00000000753A1000-memory.dmp

        memory/772-37-0x0000000071FCE000-0x0000000071FCF000-memory.dmp

        memory/772-212-0x0000000005D40000-0x0000000005D4A000-memory.dmp

        memory/772-208-0x0000000005F70000-0x0000000006514000-memory.dmp

        memory/772-52-0x0000000005000000-0x0000000005066000-memory.dmp

        memory/772-42-0x0000000000030000-0x0000000000060000-memory.dmp

        memory/772-146-0x0000000071FCE000-0x0000000071FCF000-memory.dmp

        memory/772-207-0x0000000005920000-0x00000000059B2000-memory.dmp

        memory/1448-34-0x00007FF83D8B3000-0x00007FF83D8B5000-memory.dmp

        memory/1448-51-0x00007FF83D8B0000-0x00007FF83E371000-memory.dmp

        memory/1448-213-0x00007FF83D8B0000-0x00007FF83E371000-memory.dmp

        memory/1448-39-0x0000000000440000-0x0000000000450000-memory.dmp

        memory/2012-43-0x00000000001A0000-0x00000000001B8000-memory.dmp

        memory/2012-40-0x00007FF83D8B3000-0x00007FF83D8B5000-memory.dmp