Analysis

  • max time kernel
    133s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 12:31

General

  • Target
    5dc358171478d4c9d973dc654574b41becba04c7115b604d39dae24233ba1271.exe
  • Size 45KB
  • Sample260701-pp3byags3t
  • SHA256 5dc358171478d4c9d973dc654574b41becba04c7115b604d39dae24233ba1271
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • textureta.com:80

  • textureta.com:22

  • textureta.com:8080

  • textureta.com:8880

  • textureta.com:2052

  • textureta.com:2082

  • textureta.com:2086

  • textureta.com:2095

  • textureta.com:443

  • textureta.com:2053

  • textureta.com:2083

  • textureta.com:2087

  • textureta.com:2096

  • textureta.com:8443

  • www.textureta.com:80

  • www.textureta.com:22

  • www.textureta.com:8080

  • www.textureta.com:8880

  • www.textureta.com:2052

  • www.textureta.com:2082

Mutex
  • Oo0KPFzl6lGu

Attributes
  • delay

    0

  • install

    true

  • install_file

    4che.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
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 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 46 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\5dc358171478d4c9d973dc654574b41becba04c7115b604d39dae24233ba1271.exe
    "C:\Users\Admin\AppData\Local\Temp\5dc358171478d4c9d973dc654574b41becba04c7115b604d39dae24233ba1271.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3692
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "4che" /tr '"C:\Users\Admin\AppData\Roaming\4che.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "4che" /tr '"C:\Users\Admin\AppData\Roaming\4che.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4940
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB706.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4216
      • C:\Users\Admin\AppData\Roaming\4che.exe
        "C:\Users\Admin\AppData\Roaming\4che.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5516
  • C:\Users\Admin\AppData\Roaming\4che.exe
    "C:\Users\Admin\AppData\Roaming\4che.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4640
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4192
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4232
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:620

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

        tmpB706.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpB706.tmp.bat
        • Size 148B
        • SHA256 c4424d76b81e4e76bf572b4c9781ca2eb0a3a743008fd66cd3c101156b6ff54f
        • MD5 SHA1 SHA512 TLSH

        4che.exe

        • Path C:\Users\Admin\AppData\Roaming\4che.exe
        • Size 45KB
        • SHA256 5dc358171478d4c9d973dc654574b41becba04c7115b604d39dae24233ba1271
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3692-1-0x00000000000B0000-0x00000000000C2000-memory.dmp

        memory/3692-2-0x0000000074F80000-0x000000007573C000-memory.dmp

        memory/3692-3-0x0000000004C30000-0x0000000004CCC000-memory.dmp

        memory/3692-8-0x0000000074F80000-0x000000007573C000-memory.dmp

        memory/3692-0-0x0000000074F92000-0x0000000074F93000-memory.dmp

        memory/4192-193-0x0000000010000000-0x0000000010080000-memory.dmp

        memory/4192-192-0x0000000010000000-0x0000000010080000-memory.dmp

        memory/4232-75-0x000001B7052A0000-0x000001B7052C0000-memory.dmp

        memory/4232-37-0x000001B703AE0000-0x000001B703B00000-memory.dmp

        memory/4232-16-0x000001B7001E0000-0x000001B7002E0000-memory.dmp

        memory/4232-38-0x000001B705000000-0x000001B705100000-memory.dmp

        memory/4232-51-0x000001B703D20000-0x000001B703D40000-memory.dmp

        memory/4640-14-0x0000000074F10000-0x00000000756CC000-memory.dmp

        memory/4640-12-0x0000000074F10000-0x00000000756CC000-memory.dmp