Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 19:09

General

  • Target
    70b453b59a3342d7e2691d33599d6545.exe
  • Size 45KB
  • Sample260910-xtq4gavckb
  • SHA256 c607248e4899739f0ea1717ee24c6f675d1a5f6ed5f859ddb9302f5240ae02e9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Admin

C2
  • bramasacscadi.com:80

  • bramasacscadi.com:443

  • bramasacscadi.com:7788

  • bramasacscadi.com:7879

  • bramasacscadi.com:3577

  • bramasacscadi.com:8888

  • bramasacscadi.com:3306

  • bramasacscadi.com:21

  • bramasacscadi.com:22

  • www.bramasacscadi.com:80

  • www.bramasacscadi.com:443

  • www.bramasacscadi.com:7788

  • www.bramasacscadi.com:7879

  • www.bramasacscadi.com:3577

  • www.bramasacscadi.com:8888

  • www.bramasacscadi.com:3306

  • www.bramasacscadi.com:21

  • www.bramasacscadi.com:22

  • 192.236.229.110:80

  • 192.236.229.110:443

Mutex
  • VUN8rEO4QY4x

Attributes
  • delay

    3

  • install

    true

  • install_file

    70b453b59a3342d7e2691d33599d6545.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Outbound SSH connection to public host 2 TTPs 3 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70b453b59a3342d7e2691d33599d6545.exe
    "C:\Users\Admin\AppData\Local\Temp\70b453b59a3342d7e2691d33599d6545.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "70b453b59a3342d7e2691d33599d6545" /tr '"C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:248
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "70b453b59a3342d7e2691d33599d6545" /tr '"C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4440
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7DA2.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5000
      • C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe
        "C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1956
  • C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe
    "C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5740

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp7DA2.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp7DA2.tmp.bat
        • Size 176B
        • SHA256 f84ae398c278ce9aaa55e6a6c56329216e42a7630662508804fef6200dbf3b4e
        • MD5 SHA1 SHA512 TLSH

        70b453b59a3342d7e2691d33599d6545.exe

        • Path C:\Users\Admin\AppData\Roaming\70b453b59a3342d7e2691d33599d6545.exe
        • Size 45KB
        • SHA256 c607248e4899739f0ea1717ee24c6f675d1a5f6ed5f859ddb9302f5240ae02e9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1004-0-0x0000000074752000-0x0000000074753000-memory.dmp

        memory/1004-1-0x0000000000370000-0x0000000000382000-memory.dmp

        memory/1004-2-0x0000000074740000-0x0000000074EFC000-memory.dmp

        memory/1004-3-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

        memory/1004-8-0x0000000074740000-0x0000000074EFC000-memory.dmp

        memory/5740-12-0x0000000074740000-0x0000000074EFC000-memory.dmp

        memory/5740-14-0x0000000074740000-0x0000000074EFC000-memory.dmp