Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 05:40

General

  • Target
    18933043ddbcd3a2d668a1c4c4b658c32081edc1f278bb9c3ae5dbea9a8e212d.exe
  • Size 45KB
  • Sample260706-gdatjsd15r
  • SHA256 18933043ddbcd3a2d668a1c4c4b658c32081edc1f278bb9c3ae5dbea9a8e212d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • xemsex2k.net:80

  • xemsex2k.net:22

  • xemsex2k.net:8080

  • xemsex2k.net:8880

  • xemsex2k.net:2052

  • xemsex2k.net:2082

  • xemsex2k.net:2086

  • xemsex2k.net:2095

  • xemsex2k.net:443

  • xemsex2k.net:2053

  • xemsex2k.net:2083

  • xemsex2k.net:2087

  • xemsex2k.net:2096

  • xemsex2k.net:8443

  • www.xemsex2k.net:80

  • www.xemsex2k.net:22

  • www.xemsex2k.net:8080

  • www.xemsex2k.net:8880

  • www.xemsex2k.net:2052

  • www.xemsex2k.net:2082

Mutex
  • MRkdsojJSWAp

Attributes
  • delay

    0

  • install

    true

  • install_file

    34wa.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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18933043ddbcd3a2d668a1c4c4b658c32081edc1f278bb9c3ae5dbea9a8e212d.exe
    "C:\Users\Admin\AppData\Local\Temp\18933043ddbcd3a2d668a1c4c4b658c32081edc1f278bb9c3ae5dbea9a8e212d.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "34wa" /tr '"C:\Users\Admin\AppData\Roaming\34wa.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1036
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "34wa" /tr '"C:\Users\Admin\AppData\Roaming\34wa.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp33E7.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4468
      • C:\Users\Admin\AppData\Roaming\34wa.exe
        "C:\Users\Admin\AppData\Roaming\34wa.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2692
  • C:\Users\Admin\AppData\Roaming\34wa.exe
    "C:\Users\Admin\AppData\Roaming\34wa.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3152
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:5992
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
          PID:3324
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
          PID:2728
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:5528

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                prep_Activatable Class_Hermes_perf.cache

                • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
                • Size 599B
                • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                • MD5 SHA1 SHA512 TLSH

                tmp33E7.tmp.bat

                • Path C:\Users\Admin\AppData\Local\Temp\tmp33E7.tmp.bat
                • Size 148B
                • SHA256 8ffdf4334c32d8ba3cf29b4de54b7f6f102023db4173d0c51c615fa6026cec3c
                • MD5 SHA1 SHA512 TLSH

                34wa.exe

                • Path C:\Users\Admin\AppData\Roaming\34wa.exe
                • Size 45KB
                • SHA256 18933043ddbcd3a2d668a1c4c4b658c32081edc1f278bb9c3ae5dbea9a8e212d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/2456-1-0x00000000004E0000-0x00000000004F2000-memory.dmp

                memory/2456-2-0x0000000075150000-0x000000007590C000-memory.dmp

                memory/2456-3-0x0000000005010000-0x00000000050AC000-memory.dmp

                memory/2456-9-0x0000000075150000-0x000000007590C000-memory.dmp

                memory/2456-0-0x0000000075162000-0x0000000075163000-memory.dmp

                memory/2728-81-0x0000029F950E0000-0x0000029F95100000-memory.dmp

                memory/2728-34-0x0000029F80020000-0x0000029F80120000-memory.dmp

                memory/2728-43-0x0000029F83AC0000-0x0000029F83AE0000-memory.dmp

                memory/2728-44-0x0000029F83D10000-0x0000029F83E10000-memory.dmp

                memory/2728-54-0x0000029F83C30000-0x0000029F83C50000-memory.dmp

                memory/2728-203-0x0000029F97880000-0x0000029F97B1E000-memory.dmp

                memory/3152-14-0x0000000075150000-0x000000007590C000-memory.dmp

                memory/3152-12-0x0000000075150000-0x000000007590C000-memory.dmp

                memory/5528-204-0x000001323B470000-0x000001323B70E000-memory.dmp