Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 12:24

General

  • Target
    978ff94875416d7a51f38bd4f1917241fdd05a0d29af13f81a22216a0a8e33ef.exe
  • Size 45KB
  • Sample260707-plergaez7k
  • SHA256 978ff94875416d7a51f38bd4f1917241fdd05a0d29af13f81a22216a0a8e33ef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet74.com:80

  • sexviet74.com:22

  • sexviet74.com:8080

  • sexviet74.com:8880

  • sexviet74.com:2052

  • sexviet74.com:2082

  • sexviet74.com:2086

  • sexviet74.com:2095

  • sexviet74.com:443

  • sexviet74.com:2053

  • sexviet74.com:2083

  • sexviet74.com:2087

  • sexviet74.com:2096

  • sexviet74.com:8443

  • www.sexviet74.com:80

  • www.sexviet74.com:22

  • www.sexviet74.com:8080

  • www.sexviet74.com:8880

  • www.sexviet74.com:2052

  • www.sexviet74.com:2082

Mutex
  • HqwSFbJuFsh8

Attributes
  • delay

    0

  • install

    true

  • install_file

    a860j9.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\978ff94875416d7a51f38bd4f1917241fdd05a0d29af13f81a22216a0a8e33ef.exe
    "C:\Users\Admin\AppData\Local\Temp\978ff94875416d7a51f38bd4f1917241fdd05a0d29af13f81a22216a0a8e33ef.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "a860j9" /tr '"C:\Users\Admin\AppData\Roaming\a860j9.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3696
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "a860j9" /tr '"C:\Users\Admin\AppData\Roaming\a860j9.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5280
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4FDB.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2956
      • C:\Users\Admin\AppData\Roaming\a860j9.exe
        "C:\Users\Admin\AppData\Roaming\a860j9.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:712
  • C:\Users\Admin\AppData\Roaming\a860j9.exe
    "C:\Users\Admin\AppData\Roaming\a860j9.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2932
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:4852
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
          PID:1464
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
          PID:2948
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
            PID:4968

          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

                tmp4FDB.tmp.bat

                • Path C:\Users\Admin\AppData\Local\Temp\tmp4FDB.tmp.bat
                • Size 150B
                • SHA256 017ddb778a829a2a87c5c9820a8b4a6e37e9ea64b194de51caf3ef43bcfe1aea
                • MD5 SHA1 SHA512 TLSH

                a860j9.exe

                • Path C:\Users\Admin\AppData\Roaming\a860j9.exe
                • Size 45KB
                • SHA256 978ff94875416d7a51f38bd4f1917241fdd05a0d29af13f81a22216a0a8e33ef
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/1144-3-0x00000000055E0000-0x000000000567C000-memory.dmp

                memory/1144-8-0x0000000074390000-0x0000000074B4C000-memory.dmp

                memory/1144-2-0x0000000074390000-0x0000000074B4C000-memory.dmp

                memory/1144-0-0x00000000743A2000-0x00000000743A3000-memory.dmp

                memory/1144-1-0x0000000000A60000-0x0000000000A72000-memory.dmp

                memory/2932-12-0x0000000074220000-0x00000000749DC000-memory.dmp

                memory/2932-14-0x0000000074220000-0x00000000749DC000-memory.dmp

                memory/4968-36-0x00000215FA710000-0x00000215FA810000-memory.dmp

                memory/4968-57-0x00000215832C0000-0x00000215832E0000-memory.dmp

                memory/4968-47-0x0000021583060000-0x0000021583080000-memory.dmp

                memory/4968-81-0x0000021593840000-0x0000021593860000-memory.dmp

                memory/4968-48-0x00000215934C0000-0x00000215935C0000-memory.dmp