Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 20:28

General

  • Target
    8ba6eb8b92518d4cfe9899457c3b78ad52132eff6687718e5c6d6908aad31d7e.exe
  • Size 45KB
  • Sample260620-y9dnraav41
  • SHA256 8ba6eb8b92518d4cfe9899457c3b78ad52132eff6687718e5c6d6908aad31d7e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • s1.sexviet88s.blog:80

  • s1.sexviet88s.blog:22

  • s1.sexviet88s.blog:8080

  • s1.sexviet88s.blog:8880

  • s1.sexviet88s.blog:2052

  • s1.sexviet88s.blog:2082

  • s1.sexviet88s.blog:2086

  • s1.sexviet88s.blog:2095

  • s1.sexviet88s.blog:443

  • s1.sexviet88s.blog:2053

  • s1.sexviet88s.blog:2083

  • s1.sexviet88s.blog:2087

  • s1.sexviet88s.blog:2096

  • s1.sexviet88s.blog:8443

  • www.s1.sexviet88s.blog:80

  • www.s1.sexviet88s.blog:22

  • www.s1.sexviet88s.blog:8080

  • www.s1.sexviet88s.blog:8880

  • www.s1.sexviet88s.blog:2052

  • www.s1.sexviet88s.blog:2082

Mutex
  • iAXCsSkgfnof

Attributes
  • delay

    0

  • install

    true

  • install_file

    zdkg38.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\8ba6eb8b92518d4cfe9899457c3b78ad52132eff6687718e5c6d6908aad31d7e.exe
    "C:\Users\Admin\AppData\Local\Temp\8ba6eb8b92518d4cfe9899457c3b78ad52132eff6687718e5c6d6908aad31d7e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zdkg38" /tr '"C:\Users\Admin\AppData\Roaming\zdkg38.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3700
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "zdkg38" /tr '"C:\Users\Admin\AppData\Roaming\zdkg38.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5052
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC261.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2816
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1904
      • C:\Users\Admin\AppData\Roaming\zdkg38.exe
        "C:\Users\Admin\AppData\Roaming\zdkg38.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5804
  • C:\Users\Admin\AppData\Roaming\zdkg38.exe
    "C:\Users\Admin\AppData\Roaming\zdkg38.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2944

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpC261.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC261.tmp.bat
        • Size 150B
        • SHA256 72221d9ce5f8de034c95b52d0fbc7758b5dd80551532cb34145cf5cc487c97dd
        • MD5 SHA1 SHA512 TLSH

        zdkg38.exe

        • Path C:\Users\Admin\AppData\Roaming\zdkg38.exe
        • Size 45KB
        • SHA256 8ba6eb8b92518d4cfe9899457c3b78ad52132eff6687718e5c6d6908aad31d7e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1948-0-0x0000000074E52000-0x0000000074E53000-memory.dmp

        memory/1948-1-0x0000000000A90000-0x0000000000AA2000-memory.dmp

        memory/1948-2-0x0000000074E40000-0x00000000755FC000-memory.dmp

        memory/1948-3-0x00000000055F0000-0x000000000568C000-memory.dmp

        memory/1948-8-0x0000000074E40000-0x00000000755FC000-memory.dmp

        memory/2944-12-0x0000000074DD0000-0x000000007558C000-memory.dmp

        memory/2944-14-0x0000000074DD0000-0x000000007558C000-memory.dmp