Analysis

  • max time kernel
    6s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 17:14

General

  • Target
    ec8de225213d630520f55578484957c314f7d65fa3d40c9d921784bd723cbb6b.exe
  • Size 45KB
  • Sample260714-vsb7tab18s
  • SHA256 ec8de225213d630520f55578484957c314f7d65fa3d40c9d921784bd723cbb6b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexphimhayw.pro:80

  • sexphimhayw.pro:22

  • sexphimhayw.pro:8080

  • sexphimhayw.pro:8880

  • sexphimhayw.pro:2052

  • sexphimhayw.pro:2082

  • sexphimhayw.pro:2086

  • sexphimhayw.pro:2095

  • sexphimhayw.pro:443

  • sexphimhayw.pro:2053

  • sexphimhayw.pro:2083

  • sexphimhayw.pro:2087

  • sexphimhayw.pro:2096

  • sexphimhayw.pro:8443

  • www.sexphimhayw.pro:80

  • www.sexphimhayw.pro:22

  • www.sexphimhayw.pro:8080

  • www.sexphimhayw.pro:8880

  • www.sexphimhayw.pro:2052

  • www.sexphimhayw.pro:2082

Mutex
  • CqJ4g6h3RNce

Attributes
  • delay

    0

  • install

    true

  • install_file

    y2cho6.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\ec8de225213d630520f55578484957c314f7d65fa3d40c9d921784bd723cbb6b.exe
    "C:\Users\Admin\AppData\Local\Temp\ec8de225213d630520f55578484957c314f7d65fa3d40c9d921784bd723cbb6b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "y2cho6" /tr '"C:\Users\Admin\AppData\Roaming\y2cho6.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "y2cho6" /tr '"C:\Users\Admin\AppData\Roaming\y2cho6.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:788
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEA27.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1360
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5520
      • C:\Users\Admin\AppData\Roaming\y2cho6.exe
        "C:\Users\Admin\AppData\Roaming\y2cho6.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:472
  • C:\Users\Admin\AppData\Roaming\y2cho6.exe
    "C:\Users\Admin\AppData\Roaming\y2cho6.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4532

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpEA27.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpEA27.tmp.bat
        • Size 150B
        • SHA256 cec185d9a7f72d40c4ca9769b972734e5c1620f21126b2a87b7562da26d2c4f0
        • MD5 SHA1 SHA512 TLSH

        y2cho6.exe

        • Path C:\Users\Admin\AppData\Roaming\y2cho6.exe
        • Size 45KB
        • SHA256 ec8de225213d630520f55578484957c314f7d65fa3d40c9d921784bd723cbb6b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1304-0-0x0000000074E22000-0x0000000074E23000-memory.dmp

        memory/1304-1-0x0000000000F30000-0x0000000000F42000-memory.dmp

        memory/1304-2-0x0000000074E10000-0x00000000755CC000-memory.dmp

        memory/1304-3-0x0000000005AB0000-0x0000000005B4C000-memory.dmp

        memory/1304-8-0x0000000074E10000-0x00000000755CC000-memory.dmp

        memory/4532-12-0x0000000074CA0000-0x000000007545C000-memory.dmp

        memory/4532-14-0x0000000074CA0000-0x000000007545C000-memory.dmp