Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 14:30

General

  • Target
    6976b7860dec8013fd2a316abed3818654808a947d1984c10a984a7dc5af855b.exe
  • Size 45KB
  • Sample260805-rve5psbf45
  • SHA256 6976b7860dec8013fd2a316abed3818654808a947d1984c10a984a7dc5af855b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • xemsexmy.org:80

  • xemsexmy.org:22

  • xemsexmy.org:8080

  • xemsexmy.org:8880

  • xemsexmy.org:2052

  • xemsexmy.org:2082

  • xemsexmy.org:2086

  • xemsexmy.org:2095

  • xemsexmy.org:443

  • xemsexmy.org:2053

  • xemsexmy.org:2083

  • xemsexmy.org:2087

  • xemsexmy.org:2096

  • xemsexmy.org:8443

  • www.xemsexmy.org:80

  • www.xemsexmy.org:22

  • www.xemsexmy.org:8080

  • www.xemsexmy.org:8880

  • www.xemsexmy.org:2052

  • www.xemsexmy.org:2082

Mutex
  • lDAPX2LDUg7y

Attributes
  • delay

    0

  • install

    true

  • install_file

    38euvb.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\6976b7860dec8013fd2a316abed3818654808a947d1984c10a984a7dc5af855b.exe
    "C:\Users\Admin\AppData\Local\Temp\6976b7860dec8013fd2a316abed3818654808a947d1984c10a984a7dc5af855b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "38euvb" /tr '"C:\Users\Admin\AppData\Roaming\38euvb.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "38euvb" /tr '"C:\Users\Admin\AppData\Roaming\38euvb.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5012
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp622B.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4864
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2764
      • C:\Users\Admin\AppData\Roaming\38euvb.exe
        "C:\Users\Admin\AppData\Roaming\38euvb.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3660
  • C:\Users\Admin\AppData\Roaming\38euvb.exe
    "C:\Users\Admin\AppData\Roaming\38euvb.exe"
    1⤵
    • Executes dropped EXE
    • Outbound SSH connection to public host
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3364

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp622B.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp622B.tmp.bat
        • Size 150B
        • SHA256 d504db97ee4192a122c4a9798e636e5aa6fdee7a386d3af98aae2f4574e41c5c
        • MD5 SHA1 SHA512 TLSH

        38euvb.exe

        • Path C:\Users\Admin\AppData\Roaming\38euvb.exe
        • Size 45KB
        • SHA256 6976b7860dec8013fd2a316abed3818654808a947d1984c10a984a7dc5af855b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2832-0-0x0000000075042000-0x0000000075043000-memory.dmp

        memory/2832-1-0x00000000003F0000-0x0000000000402000-memory.dmp

        memory/2832-2-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/2832-3-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

        memory/2832-8-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/3364-12-0x0000000074EC0000-0x000000007567C000-memory.dmp

        memory/3364-14-0x0000000074EC0000-0x000000007567C000-memory.dmp