Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 00:14

General

  • Target
    2e6f27af5bd58844040fff9f84626c225f62d73c48e33fb0d5815f852ce8eba4.exe
  • Size 45KB
  • Sample260804-ajf47adn5y
  • SHA256 2e6f27af5bd58844040fff9f84626c225f62d73c48e33fb0d5815f852ce8eba4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sextin.org:80

  • sextin.org:22

  • sextin.org:8080

  • sextin.org:8880

  • sextin.org:2052

  • sextin.org:2082

  • sextin.org:2086

  • sextin.org:2095

  • sextin.org:443

  • sextin.org:2053

  • sextin.org:2083

  • sextin.org:2087

  • sextin.org:2096

  • sextin.org:8443

  • www.sextin.org:80

  • www.sextin.org:22

  • www.sextin.org:8080

  • www.sextin.org:8880

  • www.sextin.org:2052

  • www.sextin.org:2082

Mutex
  • S2WlXtDyqqro

Attributes
  • delay

    0

  • install

    true

  • install_file

    wrb8b.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 1 IoCs
  • Outbound SSH connection to public host 2 TTPs 4 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 6 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 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e6f27af5bd58844040fff9f84626c225f62d73c48e33fb0d5815f852ce8eba4.exe
    "C:\Users\Admin\AppData\Local\Temp\2e6f27af5bd58844040fff9f84626c225f62d73c48e33fb0d5815f852ce8eba4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "wrb8b" /tr '"C:\Users\Admin\AppData\Roaming\wrb8b.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "wrb8b" /tr '"C:\Users\Admin\AppData\Roaming\wrb8b.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5808
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3389.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5764
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4172
      • C:\Users\Admin\AppData\Roaming\wrb8b.exe
        "C:\Users\Admin\AppData\Roaming\wrb8b.exe"
        3⤵
          PID:5428
    • C:\Users\Admin\AppData\Roaming\wrb8b.exe
      "C:\Users\Admin\AppData\Roaming\wrb8b.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2520

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp3389.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp3389.tmp.bat
          • Size 149B
          • SHA256 0da3a26645c3c06eccfeab535a1c20b3d078dd8eff0f8edf3e18265b1f2a7732
          • MD5 SHA1 SHA512 TLSH

          wrb8b.exe

          • Path C:\Users\Admin\AppData\Roaming\wrb8b.exe
          • Size 45KB
          • SHA256 2e6f27af5bd58844040fff9f84626c225f62d73c48e33fb0d5815f852ce8eba4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2520-12-0x0000000074650000-0x0000000074E0C000-memory.dmp

          memory/2520-14-0x0000000074650000-0x0000000074E0C000-memory.dmp

          memory/4644-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

          memory/4644-1-0x0000000000200000-0x0000000000212000-memory.dmp

          memory/4644-2-0x00000000747C0000-0x0000000074F7C000-memory.dmp

          memory/4644-3-0x0000000004C10000-0x0000000004CAC000-memory.dmp

          memory/4644-8-0x00000000747C0000-0x0000000074F7C000-memory.dmp